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         <PDBx:name>Gerdeman, M.S.</PDBx:name>
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         <PDBx:name>Henkin, T.M.</PDBx:name>
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         <PDBx:name>Hines, J.V.</PDBx:name>
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         <PDBx:country>UK</PDBx:country>
         <PDBx:journal_abbrev>J.Mol.Biol.</PDBx:journal_abbrev>
         <PDBx:journal_id_ASTM>JMOBAK</PDBx:journal_id_ASTM>
         <PDBx:journal_id_CSD>0070</PDBx:journal_id_CSD>
         <PDBx:journal_id_ISSN>0022-2836</PDBx:journal_id_ISSN>
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         <PDBx:pdbx_database_id_PubMed>12547201</PDBx:pdbx_database_id_PubMed>
         <PDBx:title>Solution Structure of the Bacillus subtilis T-box Antiterminator RNA: Seven Nucleotide 
Bulge Characterized by Stacking and Flexibility</PDBx:title>
         <PDBx:year>2003</PDBx:year>
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         <PDBx:pdbx_diffrn_protocol>SINGLE WAVELENGTH</PDBx:pdbx_diffrn_protocol>
         <PDBx:pdbx_monochromatic_or_laue_m_l>M</PDBx:pdbx_monochromatic_or_laue_m_l>
         <PDBx:wavelength_id>1</PDBx:wavelength_id>
      </PDBx:diffrn_radiation>
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   <PDBx:diffrn_radiation_wavelengthCategory>
      <PDBx:diffrn_radiation_wavelength id="1">
         <PDBx:wavelength xsi:nil="true" />
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      </PDBx:diffrn_radiation_wavelength>
   </PDBx:diffrn_radiation_wavelengthCategory>
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         <PDBx:pdbx_number_of_molecules>1</PDBx:pdbx_number_of_molecules>
         <PDBx:src_method>syn</PDBx:src_method>
         <PDBx:type>polymer</PDBx:type>
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         <PDBx:src_method>syn</PDBx:src_method>
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      </PDBx:entity>
   </PDBx:entityCategory>
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      <PDBx:entity_poly entity_id="1">
         <PDBx:nstd_linkage>no</PDBx:nstd_linkage>
         <PDBx:nstd_monomer>no</PDBx:nstd_monomer>
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         <PDBx:pdbx_seq_one_letter_code_can>GAGGGUGGAACCGCGC</PDBx:pdbx_seq_one_letter_code_can>
         <PDBx:pdbx_strand_id>A</PDBx:pdbx_strand_id>
         <PDBx:type>polyribonucleotide</PDBx:type>
      </PDBx:entity_poly>
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         <PDBx:type>polyribonucleotide</PDBx:type>
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         <PDBx:hetero>n</PDBx:hetero>
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         <PDBx:hetero>n</PDBx:hetero>
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         <PDBx:hetero>n</PDBx:hetero>
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      <PDBx:entity_poly_seq entity_id="1" mon_id="G" num="4">
         <PDBx:hetero>n</PDBx:hetero>
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      <PDBx:entity_poly_seq entity_id="1" mon_id="G" num="5">
         <PDBx:hetero>n</PDBx:hetero>
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         <PDBx:hetero>n</PDBx:hetero>
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         <PDBx:hetero>n</PDBx:hetero>
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      <PDBx:entity_poly_seq entity_id="1" mon_id="G" num="8">
         <PDBx:hetero>n</PDBx:hetero>
      </PDBx:entity_poly_seq>
      <PDBx:entity_poly_seq entity_id="1" mon_id="A" num="9">
         <PDBx:hetero>n</PDBx:hetero>
      </PDBx:entity_poly_seq>
      <PDBx:entity_poly_seq entity_id="1" mon_id="A" num="10">
         <PDBx:hetero>n</PDBx:hetero>
      </PDBx:entity_poly_seq>
      <PDBx:entity_poly_seq entity_id="1" mon_id="C" num="11">
         <PDBx:hetero>n</PDBx:hetero>
      </PDBx:entity_poly_seq>
      <PDBx:entity_poly_seq entity_id="1" mon_id="C" num="12">
         <PDBx:hetero>n</PDBx:hetero>
      </PDBx:entity_poly_seq>
      <PDBx:entity_poly_seq entity_id="1" mon_id="G" num="13">
         <PDBx:hetero>n</PDBx:hetero>
      </PDBx:entity_poly_seq>
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         <PDBx:hetero>n</PDBx:hetero>
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         <PDBx:hetero>n</PDBx:hetero>
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         <PDBx:hetero>n</PDBx:hetero>
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         <PDBx:hetero>n</PDBx:hetero>
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         <PDBx:hetero>n</PDBx:hetero>
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         <PDBx:hetero>n</PDBx:hetero>
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         <PDBx:hetero>n</PDBx:hetero>
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         <PDBx:hetero>n</PDBx:hetero>
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         <PDBx:hetero>n</PDBx:hetero>
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         <PDBx:hetero>n</PDBx:hetero>
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         <PDBx:hetero>n</PDBx:hetero>
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         <PDBx:buckle>-11.901</PDBx:buckle>
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         <PDBx:hbond_type_28>19</PDBx:hbond_type_28>
         <PDBx:i_auth_asym_id>A</PDBx:i_auth_asym_id>
         <PDBx:i_auth_seq_id>1</PDBx:i_auth_seq_id>
         <PDBx:j_auth_asym_id>B</PDBx:j_auth_asym_id>
         <PDBx:j_auth_seq_id>25</PDBx:j_auth_seq_id>
         <PDBx:opening>-2.695</PDBx:opening>
         <PDBx:pair_name>A_G1:C25_B</PDBx:pair_name>
         <PDBx:pair_number>1</PDBx:pair_number>
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      </PDBx:ndb_struct_na_base_pair>
      <PDBx:ndb_struct_na_base_pair i_label_asym_id="A" i_label_comp_id="G" i_label_seq_id="13" i_symmetry="1_555" j_label_asym_id="B" j_label_comp_id="U" j_label_seq_id="4" j_symmetry="1_555" model_number="1">
         <PDBx:buckle>5.661</PDBx:buckle>
         <PDBx:hbond_type_28>28</PDBx:hbond_type_28>
         <PDBx:i_auth_asym_id>A</PDBx:i_auth_asym_id>
         <PDBx:i_auth_seq_id>13</PDBx:i_auth_seq_id>
         <PDBx:j_auth_asym_id>B</PDBx:j_auth_asym_id>
         <PDBx:j_auth_seq_id>20</PDBx:j_auth_seq_id>
         <PDBx:opening>-10.426</PDBx:opening>
         <PDBx:pair_name>A_G13:U20_B</PDBx:pair_name>
         <PDBx:pair_number>5</PDBx:pair_number>
         <PDBx:propeller>18.261</PDBx:propeller>
         <PDBx:shear>-2.796</PDBx:shear>
         <PDBx:stagger>-0.707</PDBx:stagger>
         <PDBx:stretch>-0.911</PDBx:stretch>
      </PDBx:ndb_struct_na_base_pair>
      <PDBx:ndb_struct_na_base_pair i_label_asym_id="A" i_label_comp_id="C" i_label_seq_id="14" i_symmetry="1_555" j_label_asym_id="B" j_label_comp_id="G" j_label_seq_id="3" j_symmetry="1_555" model_number="1">
         <PDBx:buckle>18.152</PDBx:buckle>
         <PDBx:hbond_type_12>1</PDBx:hbond_type_12>
         <PDBx:hbond_type_28>19</PDBx:hbond_type_28>
         <PDBx:i_auth_asym_id>A</PDBx:i_auth_asym_id>
         <PDBx:i_auth_seq_id>14</PDBx:i_auth_seq_id>
         <PDBx:j_auth_asym_id>B</PDBx:j_auth_asym_id>
         <PDBx:j_auth_seq_id>19</PDBx:j_auth_seq_id>
         <PDBx:opening>-0.626</PDBx:opening>
         <PDBx:pair_name>A_C14:G19_B</PDBx:pair_name>
         <PDBx:pair_number>6</PDBx:pair_number>
         <PDBx:propeller>-18.539</PDBx:propeller>
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         <PDBx:stagger>-0.706</PDBx:stagger>
         <PDBx:stretch>-0.313</PDBx:stretch>
      </PDBx:ndb_struct_na_base_pair>
      <PDBx:ndb_struct_na_base_pair i_label_asym_id="A" i_label_comp_id="G" i_label_seq_id="15" i_symmetry="1_555" j_label_asym_id="B" j_label_comp_id="C" j_label_seq_id="2" j_symmetry="1_555" model_number="1">
         <PDBx:buckle>-18.243</PDBx:buckle>
         <PDBx:hbond_type_12>1</PDBx:hbond_type_12>
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         <PDBx:i_auth_seq_id>15</PDBx:i_auth_seq_id>
         <PDBx:j_auth_asym_id>B</PDBx:j_auth_asym_id>
         <PDBx:j_auth_seq_id>18</PDBx:j_auth_seq_id>
         <PDBx:opening>-5.713</PDBx:opening>
         <PDBx:pair_name>A_G15:C18_B</PDBx:pair_name>
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         <PDBx:shear>0.717</PDBx:shear>
         <PDBx:stagger>-2.267</PDBx:stagger>
         <PDBx:stretch>-1.341</PDBx:stretch>
      </PDBx:ndb_struct_na_base_pair>
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         <PDBx:buckle>-25.722</PDBx:buckle>
         <PDBx:hbond_type_12>1</PDBx:hbond_type_12>
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         <PDBx:i_auth_seq_id>16</PDBx:i_auth_seq_id>
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         <PDBx:j_auth_seq_id>17</PDBx:j_auth_seq_id>
         <PDBx:opening>-1.969</PDBx:opening>
         <PDBx:pair_name>A_C16:G17_B</PDBx:pair_name>
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         <PDBx:stagger>0.600</PDBx:stagger>
         <PDBx:stretch>-0.231</PDBx:stretch>
      </PDBx:ndb_struct_na_base_pair>
   </PDBx:ndb_struct_na_base_pairCategory>
   <PDBx:ndb_struct_na_base_pair_stepCategory>
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         <PDBx:helical_rise>2.747</PDBx:helical_rise>
         <PDBx:helical_twist>34.364</PDBx:helical_twist>
         <PDBx:i_auth_asym_id_1>A</PDBx:i_auth_asym_id_1>
         <PDBx:i_auth_asym_id_2>A</PDBx:i_auth_asym_id_2>
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         <PDBx:i_auth_seq_id_2>2</PDBx:i_auth_seq_id_2>
         <PDBx:inclination>-6.524</PDBx:inclination>
         <PDBx:j_auth_asym_id_1>B</PDBx:j_auth_asym_id_1>
         <PDBx:j_auth_asym_id_2>B</PDBx:j_auth_asym_id_2>
         <PDBx:j_auth_seq_id_1>25</PDBx:j_auth_seq_id_1>
         <PDBx:j_auth_seq_id_2>24</PDBx:j_auth_seq_id_2>
         <PDBx:rise>2.568</PDBx:rise>
         <PDBx:roll>-3.811</PDBx:roll>
         <PDBx:shift>-0.832</PDBx:shift>
         <PDBx:slide>-0.662</PDBx:slide>
         <PDBx:step_name>AA_G1A2:U24C25_BB</PDBx:step_name>
         <PDBx:step_number>1</PDBx:step_number>
         <PDBx:tilt>-8.268</PDBx:tilt>
         <PDBx:tip>14.153</PDBx:tip>
         <PDBx:twist>33.171</PDBx:twist>
         <PDBx:x_displacement>-0.627</PDBx:x_displacement>
         <PDBx:y_displacement>0.338</PDBx:y_displacement>
      </PDBx:ndb_struct_na_base_pair_step>
      <PDBx:ndb_struct_na_base_pair_step i_label_asym_id_1="A" i_label_asym_id_2="A" i_label_comp_id_1="A" i_label_comp_id_2="G" i_label_seq_id_1="2" i_label_seq_id_2="3" i_symmetry_1="1_555" i_symmetry_2="1_555" j_label_asym_id_1="B" j_label_asym_id_2="B" j_label_comp_id_1="U" j_label_comp_id_2="C" j_label_seq_id_1="8" j_label_seq_id_2="7" j_symmetry_1="1_555" j_symmetry_2="1_555" model_number="1">
         <PDBx:helical_rise>2.623</PDBx:helical_rise>
         <PDBx:helical_twist>43.441</PDBx:helical_twist>
         <PDBx:i_auth_asym_id_1>A</PDBx:i_auth_asym_id_1>
         <PDBx:i_auth_asym_id_2>A</PDBx:i_auth_asym_id_2>
         <PDBx:i_auth_seq_id_1>2</PDBx:i_auth_seq_id_1>
         <PDBx:i_auth_seq_id_2>3</PDBx:i_auth_seq_id_2>
         <PDBx:inclination>-37.366</PDBx:inclination>
         <PDBx:j_auth_asym_id_1>B</PDBx:j_auth_asym_id_1>
         <PDBx:j_auth_asym_id_2>B</PDBx:j_auth_asym_id_2>
         <PDBx:j_auth_seq_id_1>24</PDBx:j_auth_seq_id_1>
         <PDBx:j_auth_seq_id_2>23</PDBx:j_auth_seq_id_2>
         <PDBx:rise>3.201</PDBx:rise>
         <PDBx:roll>-25.957</PDBx:roll>
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         <PDBx:slide>-0.047</PDBx:slide>
         <PDBx:step_name>AA_A2G3:C23U24_BB</PDBx:step_name>
         <PDBx:step_number>2</PDBx:step_number>
         <PDBx:tilt>-0.933</PDBx:tilt>
         <PDBx:tip>1.343</PDBx:tip>
         <PDBx:twist>35.126</PDBx:twist>
         <PDBx:x_displacement>2.445</PDBx:x_displacement>
         <PDBx:y_displacement>-0.984</PDBx:y_displacement>
      </PDBx:ndb_struct_na_base_pair_step>
      <PDBx:ndb_struct_na_base_pair_step i_label_asym_id_1="A" i_label_asym_id_2="A" i_label_comp_id_1="G" i_label_comp_id_2="G" i_label_seq_id_1="3" i_label_seq_id_2="4" i_symmetry_1="1_555" i_symmetry_2="1_555" j_label_asym_id_1="B" j_label_asym_id_2="B" j_label_comp_id_1="C" j_label_comp_id_2="C" j_label_seq_id_1="7" j_label_seq_id_2="6" j_symmetry_1="1_555" j_symmetry_2="1_555" model_number="1">
         <PDBx:helical_rise>3.736</PDBx:helical_rise>
         <PDBx:helical_twist>38.639</PDBx:helical_twist>
         <PDBx:i_auth_asym_id_1>A</PDBx:i_auth_asym_id_1>
         <PDBx:i_auth_asym_id_2>A</PDBx:i_auth_asym_id_2>
         <PDBx:i_auth_seq_id_1>3</PDBx:i_auth_seq_id_1>
         <PDBx:i_auth_seq_id_2>4</PDBx:i_auth_seq_id_2>
         <PDBx:inclination>20.671</PDBx:inclination>
         <PDBx:j_auth_asym_id_1>B</PDBx:j_auth_asym_id_1>
         <PDBx:j_auth_asym_id_2>B</PDBx:j_auth_asym_id_2>
         <PDBx:j_auth_seq_id_1>23</PDBx:j_auth_seq_id_1>
         <PDBx:j_auth_seq_id_2>22</PDBx:j_auth_seq_id_2>
         <PDBx:rise>3.728</PDBx:rise>
         <PDBx:roll>13.315</PDBx:roll>
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         <PDBx:slide>0.047</PDBx:slide>
         <PDBx:step_name>AA_G3G4:C22C23_BB</PDBx:step_name>
         <PDBx:step_number>3</PDBx:step_number>
         <PDBx:tilt>8.127</PDBx:tilt>
         <PDBx:tip>-12.616</PDBx:tip>
         <PDBx:twist>35.461</PDBx:twist>
         <PDBx:x_displacement>-1.888</PDBx:x_displacement>
         <PDBx:y_displacement>-0.950</PDBx:y_displacement>
      </PDBx:ndb_struct_na_base_pair_step>
      <PDBx:ndb_struct_na_base_pair_step i_label_asym_id_1="A" i_label_asym_id_2="A" i_label_comp_id_1="G" i_label_comp_id_2="C" i_label_seq_id_1="13" i_label_seq_id_2="14" i_symmetry_1="1_555" i_symmetry_2="1_555" j_label_asym_id_1="B" j_label_asym_id_2="B" j_label_comp_id_1="U" j_label_comp_id_2="G" j_label_seq_id_1="4" j_label_seq_id_2="3" j_symmetry_1="1_555" j_symmetry_2="1_555" model_number="1">
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         <PDBx:helical_twist>32.602</PDBx:helical_twist>
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         <PDBx:i_auth_asym_id_2>A</PDBx:i_auth_asym_id_2>
         <PDBx:i_auth_seq_id_1>13</PDBx:i_auth_seq_id_1>
         <PDBx:i_auth_seq_id_2>14</PDBx:i_auth_seq_id_2>
         <PDBx:inclination>-19.046</PDBx:inclination>
         <PDBx:j_auth_asym_id_1>B</PDBx:j_auth_asym_id_1>
         <PDBx:j_auth_asym_id_2>B</PDBx:j_auth_asym_id_2>
         <PDBx:j_auth_seq_id_1>20</PDBx:j_auth_seq_id_1>
         <PDBx:j_auth_seq_id_2>19</PDBx:j_auth_seq_id_2>
         <PDBx:rise>3.504</PDBx:rise>
         <PDBx:roll>-10.493</PDBx:roll>
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         <PDBx:step_name>AA_G13C14:G19U20_BB</PDBx:step_name>
         <PDBx:step_number>4</PDBx:step_number>
         <PDBx:tilt>3.352</PDBx:tilt>
         <PDBx:tip>-6.084</PDBx:tip>
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         <PDBx:x_displacement>-0.710</PDBx:x_displacement>
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      </PDBx:ndb_struct_na_base_pair_step>
      <PDBx:ndb_struct_na_base_pair_step i_label_asym_id_1="A" i_label_asym_id_2="A" i_label_comp_id_1="C" i_label_comp_id_2="G" i_label_seq_id_1="14" i_label_seq_id_2="15" i_symmetry_1="1_555" i_symmetry_2="1_555" j_label_asym_id_1="B" j_label_asym_id_2="B" j_label_comp_id_1="G" j_label_comp_id_2="C" j_label_seq_id_1="3" j_label_seq_id_2="2" j_symmetry_1="1_555" j_symmetry_2="1_555" model_number="1">
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         <PDBx:helical_twist>45.943</PDBx:helical_twist>
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         <PDBx:i_auth_asym_id_2>A</PDBx:i_auth_asym_id_2>
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         <PDBx:inclination>29.744</PDBx:inclination>
         <PDBx:j_auth_asym_id_1>B</PDBx:j_auth_asym_id_1>
         <PDBx:j_auth_asym_id_2>B</PDBx:j_auth_asym_id_2>
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         <PDBx:j_auth_seq_id_2>18</PDBx:j_auth_seq_id_2>
         <PDBx:rise>4.815</PDBx:rise>
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      </PDBx:ndb_struct_na_base_pair_step>
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         <PDBx:j_auth_asym_id_1>B</PDBx:j_auth_asym_id_1>
         <PDBx:j_auth_asym_id_2>B</PDBx:j_auth_asym_id_2>
         <PDBx:j_auth_seq_id_1>18</PDBx:j_auth_seq_id_1>
         <PDBx:j_auth_seq_id_2>17</PDBx:j_auth_seq_id_2>
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         <PDBx:step_name>AA_G15C16:G17C18_BB</PDBx:step_name>
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         <PDBx:tip>22.790</PDBx:tip>
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         <PDBx:x_displacement>-3.870</PDBx:x_displacement>
         <PDBx:y_displacement>-0.945</PDBx:y_displacement>
      </PDBx:ndb_struct_na_base_pair_step>
   </PDBx:ndb_struct_na_base_pair_stepCategory>
   <PDBx:pdbx_audit_revision_detailsCategory>
      <PDBx:pdbx_audit_revision_details data_content_type="Structure model" ordinal="1" revision_ordinal="1">
         <PDBx:provider>repository</PDBx:provider>
         <PDBx:type>Initial release</PDBx:type>
      </PDBx:pdbx_audit_revision_details>
   </PDBx:pdbx_audit_revision_detailsCategory>
   <PDBx:pdbx_audit_revision_groupCategory>
      <PDBx:pdbx_audit_revision_group data_content_type="Structure model" ordinal="1" revision_ordinal="2">
         <PDBx:group>Version format compliance</PDBx:group>
      </PDBx:pdbx_audit_revision_group>
      <PDBx:pdbx_audit_revision_group data_content_type="Structure model" ordinal="2" revision_ordinal="3">
         <PDBx:group>Version format compliance</PDBx:group>
      </PDBx:pdbx_audit_revision_group>
   </PDBx:pdbx_audit_revision_groupCategory>
   <PDBx:pdbx_audit_revision_historyCategory>
      <PDBx:pdbx_audit_revision_history data_content_type="Structure model" ordinal="1">
         <PDBx:major_revision>1</PDBx:major_revision>
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         <PDBx:revision_date>2003-04-29</PDBx:revision_date>
      </PDBx:pdbx_audit_revision_history>
      <PDBx:pdbx_audit_revision_history data_content_type="Structure model" ordinal="2">
         <PDBx:major_revision>1</PDBx:major_revision>
         <PDBx:minor_revision>1</PDBx:minor_revision>
         <PDBx:revision_date>2008-04-28</PDBx:revision_date>
      </PDBx:pdbx_audit_revision_history>
      <PDBx:pdbx_audit_revision_history data_content_type="Structure model" ordinal="3">
         <PDBx:major_revision>1</PDBx:major_revision>
         <PDBx:minor_revision>2</PDBx:minor_revision>
         <PDBx:revision_date>2011-07-13</PDBx:revision_date>
      </PDBx:pdbx_audit_revision_history>
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      <PDBx:pdbx_database_status entry_id="1N53">
         <PDBx:SG_entry xsi:nil="true" />
         <PDBx:deposit_site>RCSB</PDBx:deposit_site>
         <PDBx:pdb_format_compatible>Y</PDBx:pdb_format_compatible>
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         <PDBx:recvd_initial_deposition_date>2002-11-04</PDBx:recvd_initial_deposition_date>
         <PDBx:status_code>REL</PDBx:status_code>
         <PDBx:status_code_mr>REL</PDBx:status_code_mr>
      </PDBx:pdbx_database_status>
   </PDBx:pdbx_database_statusCategory>
   <PDBx:pdbx_entity_src_synCategory>
      <PDBx:pdbx_entity_src_syn entity_id="1" pdbx_src_id="1">
         <PDBx:details>Synthesized using T7 RNA polymerase</PDBx:details>
         <PDBx:pdbx_alt_source_flag>sample</PDBx:pdbx_alt_source_flag>
      </PDBx:pdbx_entity_src_syn>
      <PDBx:pdbx_entity_src_syn entity_id="2" pdbx_src_id="1">
         <PDBx:details>Synthesized using T7 RNA polymerase</PDBx:details>
         <PDBx:pdbx_alt_source_flag>sample</PDBx:pdbx_alt_source_flag>
      </PDBx:pdbx_entity_src_syn>
   </PDBx:pdbx_entity_src_synCategory>
   <PDBx:pdbx_nmr_detailsCategory>
      <PDBx:pdbx_nmr_details entry_id="1N53">
         <PDBx:text>This structure was determined using standard 2D and 3D homonuclear and heteronuclear NMR techniques.</PDBx:text>
      </PDBx:pdbx_nmr_details>
   </PDBx:pdbx_nmr_detailsCategory>
   <PDBx:pdbx_nmr_ensembleCategory>
      <PDBx:pdbx_nmr_ensemble entry_id="1N53">
         <PDBx:conformer_selection_criteria>The minimized average structure of the 9 lowest energy structures (all with favorable non-bond energy and the fewest number of constraint violations) is submitted.</PDBx:conformer_selection_criteria>
         <PDBx:conformers_calculated_total_number>50</PDBx:conformers_calculated_total_number>
         <PDBx:conformers_submitted_total_number>1</PDBx:conformers_submitted_total_number>
      </PDBx:pdbx_nmr_ensemble>
   </PDBx:pdbx_nmr_ensembleCategory>
   <PDBx:pdbx_nmr_exptlCategory>
      <PDBx:pdbx_nmr_exptl conditions_id="1" experiment_id="1" solution_id="1">
         <PDBx:type>2D NOESY</PDBx:type>
      </PDBx:pdbx_nmr_exptl>
      <PDBx:pdbx_nmr_exptl conditions_id="1" experiment_id="2" solution_id="1">
         <PDBx:type>2D TOCSY</PDBx:type>
      </PDBx:pdbx_nmr_exptl>
      <PDBx:pdbx_nmr_exptl conditions_id="1" experiment_id="3" solution_id="1">
         <PDBx:type>DQF-COSY</PDBx:type>
      </PDBx:pdbx_nmr_exptl>
      <PDBx:pdbx_nmr_exptl conditions_id="1" experiment_id="4" solution_id="1">
         <PDBx:type>3D_13C-separated_NOESY</PDBx:type>
      </PDBx:pdbx_nmr_exptl>
      <PDBx:pdbx_nmr_exptl conditions_id="1" experiment_id="5" solution_id="1">
         <PDBx:type>2D_HSQC</PDBx:type>
      </PDBx:pdbx_nmr_exptl>
      <PDBx:pdbx_nmr_exptl conditions_id="1" experiment_id="6" solution_id="1">
         <PDBx:type>2D_1H_31P_HETCOR</PDBx:type>
      </PDBx:pdbx_nmr_exptl>
   </PDBx:pdbx_nmr_exptlCategory>
   <PDBx:pdbx_nmr_exptl_sample_conditionsCategory>
      <PDBx:pdbx_nmr_exptl_sample_conditions conditions_id="1">
         <PDBx:ionic_strength>10 mM</PDBx:ionic_strength>
         <PDBx:pH>6.5</PDBx:pH>
         <PDBx:pressure>ambient</PDBx:pressure>
         <PDBx:temperature>295</PDBx:temperature>
         <PDBx:temperature_units>K</PDBx:temperature_units>
      </PDBx:pdbx_nmr_exptl_sample_conditions>
      <PDBx:pdbx_nmr_exptl_sample_conditions conditions_id="2">
         <PDBx:ionic_strength>10 mM</PDBx:ionic_strength>
         <PDBx:pH>6.5</PDBx:pH>
         <PDBx:pressure>ambient</PDBx:pressure>
         <PDBx:temperature>277</PDBx:temperature>
         <PDBx:temperature_units>K</PDBx:temperature_units>
      </PDBx:pdbx_nmr_exptl_sample_conditions>
   </PDBx:pdbx_nmr_exptl_sample_conditionsCategory>
   <PDBx:pdbx_nmr_refineCategory>
      <PDBx:pdbx_nmr_refine entry_id="1N53" software_ordinal="1">
         <PDBx:details>A total of 313 distance constraints and 59 dihedral angle constraints were used.</PDBx:details>
         <PDBx:method>distance geometry, simulated annealing, molecular dynamics</PDBx:method>
      </PDBx:pdbx_nmr_refine>
   </PDBx:pdbx_nmr_refineCategory>
   <PDBx:pdbx_nmr_representativeCategory>
      <PDBx:pdbx_nmr_representative entry_id="1N53">
         <PDBx:conformer_id>1</PDBx:conformer_id>
      </PDBx:pdbx_nmr_representative>
   </PDBx:pdbx_nmr_representativeCategory>
   <PDBx:pdbx_nmr_sample_detailsCategory>
      <PDBx:pdbx_nmr_sample_details solution_id="1">
         <PDBx:contents>0.7 mM (U-15N, U-13C) or 1.2 mM (unlabeled) T box model RNA (AM1A); 10 mM sodium phosphate buffer pH 6.5, 0.01 mM EDTA</PDBx:contents>
         <PDBx:solvent_system>100&#37; D2O</PDBx:solvent_system>
      </PDBx:pdbx_nmr_sample_details>
      <PDBx:pdbx_nmr_sample_details solution_id="2">
         <PDBx:contents>0.7 mM (U-15N, U-13C) or 1.2 mM (unlabeled) T box model RNA (AM1A); 10 mM sodium phosphate buffer pH 6.5, 0.01 mM EDTA</PDBx:contents>
         <PDBx:solvent_system>90&#37; H2O/10&#37; D2O</PDBx:solvent_system>
      </PDBx:pdbx_nmr_sample_details>
   </PDBx:pdbx_nmr_sample_detailsCategory>
   <PDBx:pdbx_nmr_softwareCategory>
      <PDBx:pdbx_nmr_software ordinal="1">
         <PDBx:classification>processing</PDBx:classification>
         <PDBx:name>FELIX</PDBx:name>
         <PDBx:version>95,98</PDBx:version>
      </PDBx:pdbx_nmr_software>
      <PDBx:pdbx_nmr_software ordinal="2">
         <PDBx:authors>Brunger</PDBx:authors>
         <PDBx:classification>structure solution</PDBx:classification>
         <PDBx:name>X-PLOR</PDBx:name>
         <PDBx:version>98.1</PDBx:version>
      </PDBx:pdbx_nmr_software>
      <PDBx:pdbx_nmr_software ordinal="3">
         <PDBx:classification>processing</PDBx:classification>
         <PDBx:name>XWINNMR</PDBx:name>
      </PDBx:pdbx_nmr_software>
      <PDBx:pdbx_nmr_software ordinal="4">
         <PDBx:authors>Brunger</PDBx:authors>
         <PDBx:classification>refinement</PDBx:classification>
         <PDBx:name>X-PLOR</PDBx:name>
         <PDBx:version>98.1</PDBx:version>
      </PDBx:pdbx_nmr_software>
   </PDBx:pdbx_nmr_softwareCategory>
   <PDBx:pdbx_nmr_spectrometerCategory>
      <PDBx:pdbx_nmr_spectrometer spectrometer_id="1">
         <PDBx:field_strength>800</PDBx:field_strength>
         <PDBx:manufacturer>Bruker</PDBx:manufacturer>
         <PDBx:model>DRX</PDBx:model>
      </PDBx:pdbx_nmr_spectrometer>
      <PDBx:pdbx_nmr_spectrometer spectrometer_id="2">
         <PDBx:field_strength>400</PDBx:field_strength>
         <PDBx:manufacturer>Bruker</PDBx:manufacturer>
         <PDBx:model>DMX</PDBx:model>
      </PDBx:pdbx_nmr_spectrometer>
      <PDBx:pdbx_nmr_spectrometer spectrometer_id="3">
         <PDBx:field_strength>600</PDBx:field_strength>
         <PDBx:manufacturer>Bruker</PDBx:manufacturer>
         <PDBx:model>DMX</PDBx:model>
      </PDBx:pdbx_nmr_spectrometer>
   </PDBx:pdbx_nmr_spectrometerCategory>
   <PDBx:pdbx_poly_seq_schemeCategory>
      <PDBx:pdbx_poly_seq_scheme asym_id="A" entity_id="1" mon_id="G" seq_id="1">
         <PDBx:auth_mon_id>G</PDBx:auth_mon_id>
         <PDBx:auth_seq_num>1</PDBx:auth_seq_num>
         <PDBx:hetero>n</PDBx:hetero>
         <PDBx:ndb_seq_num>1</PDBx:ndb_seq_num>
         <PDBx:pdb_ins_code xsi:nil="true" />
         <PDBx:pdb_mon_id>G</PDBx:pdb_mon_id>
         <PDBx:pdb_seq_num>1</PDBx:pdb_seq_num>
         <PDBx:pdb_strand_id>A</PDBx:pdb_strand_id>
      </PDBx:pdbx_poly_seq_scheme>
      <PDBx:pdbx_poly_seq_scheme asym_id="A" entity_id="1" mon_id="A" seq_id="2">
         <PDBx:auth_mon_id>A</PDBx:auth_mon_id>
         <PDBx:auth_seq_num>2</PDBx:auth_seq_num>
         <PDBx:hetero>n</PDBx:hetero>
         <PDBx:ndb_seq_num>2</PDBx:ndb_seq_num>
         <PDBx:pdb_ins_code xsi:nil="true" />
         <PDBx:pdb_mon_id>A</PDBx:pdb_mon_id>
         <PDBx:pdb_seq_num>2</PDBx:pdb_seq_num>
         <PDBx:pdb_strand_id>A</PDBx:pdb_strand_id>
      </PDBx:pdbx_poly_seq_scheme>
      <PDBx:pdbx_poly_seq_scheme asym_id="A" entity_id="1" mon_id="G" seq_id="3">
         <PDBx:auth_mon_id>G</PDBx:auth_mon_id>
         <PDBx:auth_seq_num>3</PDBx:auth_seq_num>
         <PDBx:hetero>n</PDBx:hetero>
         <PDBx:ndb_seq_num>3</PDBx:ndb_seq_num>
         <PDBx:pdb_ins_code xsi:nil="true" />
         <PDBx:pdb_mon_id>G</PDBx:pdb_mon_id>
         <PDBx:pdb_seq_num>3</PDBx:pdb_seq_num>
         <PDBx:pdb_strand_id>A</PDBx:pdb_strand_id>
      </PDBx:pdbx_poly_seq_scheme>
      <PDBx:pdbx_poly_seq_scheme asym_id="A" entity_id="1" mon_id="G" seq_id="4">
         <PDBx:auth_mon_id>G</PDBx:auth_mon_id>
         <PDBx:auth_seq_num>4</PDBx:auth_seq_num>
         <PDBx:hetero>n</PDBx:hetero>
         <PDBx:ndb_seq_num>4</PDBx:ndb_seq_num>
         <PDBx:pdb_ins_code xsi:nil="true" />
         <PDBx:pdb_mon_id>G</PDBx:pdb_mon_id>
         <PDBx:pdb_seq_num>4</PDBx:pdb_seq_num>
         <PDBx:pdb_strand_id>A</PDBx:pdb_strand_id>
      </PDBx:pdbx_poly_seq_scheme>
      <PDBx:pdbx_poly_seq_scheme asym_id="A" entity_id="1" mon_id="G" seq_id="5">
         <PDBx:auth_mon_id>G</PDBx:auth_mon_id>
         <PDBx:auth_seq_num>5</PDBx:auth_seq_num>
         <PDBx:hetero>n</PDBx:hetero>
         <PDBx:ndb_seq_num>5</PDBx:ndb_seq_num>
         <PDBx:pdb_ins_code xsi:nil="true" />
         <PDBx:pdb_mon_id>G</PDBx:pdb_mon_id>
         <PDBx:pdb_seq_num>5</PDBx:pdb_seq_num>
         <PDBx:pdb_strand_id>A</PDBx:pdb_strand_id>
      </PDBx:pdbx_poly_seq_scheme>
      <PDBx:pdbx_poly_seq_scheme asym_id="A" entity_id="1" mon_id="U" seq_id="6">
         <PDBx:auth_mon_id>U</PDBx:auth_mon_id>
         <PDBx:auth_seq_num>6</PDBx:auth_seq_num>
         <PDBx:hetero>n</PDBx:hetero>
         <PDBx:ndb_seq_num>6</PDBx:ndb_seq_num>
         <PDBx:pdb_ins_code xsi:nil="true" />
         <PDBx:pdb_mon_id>U</PDBx:pdb_mon_id>
         <PDBx:pdb_seq_num>6</PDBx:pdb_seq_num>
         <PDBx:pdb_strand_id>A</PDBx:pdb_strand_id>
      </PDBx:pdbx_poly_seq_scheme>
      <PDBx:pdbx_poly_seq_scheme asym_id="A" entity_id="1" mon_id="G" seq_id="7">
         <PDBx:auth_mon_id>G</PDBx:auth_mon_id>
         <PDBx:auth_seq_num>7</PDBx:auth_seq_num>
         <PDBx:hetero>n</PDBx:hetero>
         <PDBx:ndb_seq_num>7</PDBx:ndb_seq_num>
         <PDBx:pdb_ins_code xsi:nil="true" />
         <PDBx:pdb_mon_id>G</PDBx:pdb_mon_id>
         <PDBx:pdb_seq_num>7</PDBx:pdb_seq_num>
         <PDBx:pdb_strand_id>A</PDBx:pdb_strand_id>
      </PDBx:pdbx_poly_seq_scheme>
      <PDBx:pdbx_poly_seq_scheme asym_id="A" entity_id="1" mon_id="G" seq_id="8">
         <PDBx:auth_mon_id>G</PDBx:auth_mon_id>
         <PDBx:auth_seq_num>8</PDBx:auth_seq_num>
         <PDBx:hetero>n</PDBx:hetero>
         <PDBx:ndb_seq_num>8</PDBx:ndb_seq_num>
         <PDBx:pdb_ins_code xsi:nil="true" />
         <PDBx:pdb_mon_id>G</PDBx:pdb_mon_id>
         <PDBx:pdb_seq_num>8</PDBx:pdb_seq_num>
         <PDBx:pdb_strand_id>A</PDBx:pdb_strand_id>
      </PDBx:pdbx_poly_seq_scheme>
      <PDBx:pdbx_poly_seq_scheme asym_id="A" entity_id="1" mon_id="A" seq_id="9">
         <PDBx:auth_mon_id>A</PDBx:auth_mon_id>
         <PDBx:auth_seq_num>9</PDBx:auth_seq_num>
         <PDBx:hetero>n</PDBx:hetero>
         <PDBx:ndb_seq_num>9</PDBx:ndb_seq_num>
         <PDBx:pdb_ins_code xsi:nil="true" />
         <PDBx:pdb_mon_id>A</PDBx:pdb_mon_id>
         <PDBx:pdb_seq_num>9</PDBx:pdb_seq_num>
         <PDBx:pdb_strand_id>A</PDBx:pdb_strand_id>
      </PDBx:pdbx_poly_seq_scheme>
      <PDBx:pdbx_poly_seq_scheme asym_id="A" entity_id="1" mon_id="A" seq_id="10">
         <PDBx:auth_mon_id>A</PDBx:auth_mon_id>
         <PDBx:auth_seq_num>10</PDBx:auth_seq_num>
         <PDBx:hetero>n</PDBx:hetero>
         <PDBx:ndb_seq_num>10</PDBx:ndb_seq_num>
         <PDBx:pdb_ins_code xsi:nil="true" />
         <PDBx:pdb_mon_id>A</PDBx:pdb_mon_id>
         <PDBx:pdb_seq_num>10</PDBx:pdb_seq_num>
         <PDBx:pdb_strand_id>A</PDBx:pdb_strand_id>
      </PDBx:pdbx_poly_seq_scheme>
      <PDBx:pdbx_poly_seq_scheme asym_id="A" entity_id="1" mon_id="C" seq_id="11">
         <PDBx:auth_mon_id>C</PDBx:auth_mon_id>
         <PDBx:auth_seq_num>11</PDBx:auth_seq_num>
         <PDBx:hetero>n</PDBx:hetero>
         <PDBx:ndb_seq_num>11</PDBx:ndb_seq_num>
         <PDBx:pdb_ins_code xsi:nil="true" />
         <PDBx:pdb_mon_id>C</PDBx:pdb_mon_id>
         <PDBx:pdb_seq_num>11</PDBx:pdb_seq_num>
         <PDBx:pdb_strand_id>A</PDBx:pdb_strand_id>
      </PDBx:pdbx_poly_seq_scheme>
      <PDBx:pdbx_poly_seq_scheme asym_id="A" entity_id="1" mon_id="C" seq_id="12">
         <PDBx:auth_mon_id>C</PDBx:auth_mon_id>
         <PDBx:auth_seq_num>12</PDBx:auth_seq_num>
         <PDBx:hetero>n</PDBx:hetero>
         <PDBx:ndb_seq_num>12</PDBx:ndb_seq_num>
         <PDBx:pdb_ins_code xsi:nil="true" />
         <PDBx:pdb_mon_id>C</PDBx:pdb_mon_id>
         <PDBx:pdb_seq_num>12</PDBx:pdb_seq_num>
         <PDBx:pdb_strand_id>A</PDBx:pdb_strand_id>
      </PDBx:pdbx_poly_seq_scheme>
      <PDBx:pdbx_poly_seq_scheme asym_id="A" entity_id="1" mon_id="G" seq_id="13">
         <PDBx:auth_mon_id>G</PDBx:auth_mon_id>
         <PDBx:auth_seq_num>13</PDBx:auth_seq_num>
         <PDBx:hetero>n</PDBx:hetero>
         <PDBx:ndb_seq_num>13</PDBx:ndb_seq_num>
         <PDBx:pdb_ins_code xsi:nil="true" />
         <PDBx:pdb_mon_id>G</PDBx:pdb_mon_id>
         <PDBx:pdb_seq_num>13</PDBx:pdb_seq_num>
         <PDBx:pdb_strand_id>A</PDBx:pdb_strand_id>
      </PDBx:pdbx_poly_seq_scheme>
      <PDBx:pdbx_poly_seq_scheme asym_id="A" entity_id="1" mon_id="C" seq_id="14">
         <PDBx:auth_mon_id>C</PDBx:auth_mon_id>
         <PDBx:auth_seq_num>14</PDBx:auth_seq_num>
         <PDBx:hetero>n</PDBx:hetero>
         <PDBx:ndb_seq_num>14</PDBx:ndb_seq_num>
         <PDBx:pdb_ins_code xsi:nil="true" />
         <PDBx:pdb_mon_id>C</PDBx:pdb_mon_id>
         <PDBx:pdb_seq_num>14</PDBx:pdb_seq_num>
         <PDBx:pdb_strand_id>A</PDBx:pdb_strand_id>
      </PDBx:pdbx_poly_seq_scheme>
      <PDBx:pdbx_poly_seq_scheme asym_id="A" entity_id="1" mon_id="G" seq_id="15">
         <PDBx:auth_mon_id>G</PDBx:auth_mon_id>
         <PDBx:auth_seq_num>15</PDBx:auth_seq_num>
         <PDBx:hetero>n</PDBx:hetero>
         <PDBx:ndb_seq_num>15</PDBx:ndb_seq_num>
         <PDBx:pdb_ins_code xsi:nil="true" />
         <PDBx:pdb_mon_id>G</PDBx:pdb_mon_id>
         <PDBx:pdb_seq_num>15</PDBx:pdb_seq_num>
         <PDBx:pdb_strand_id>A</PDBx:pdb_strand_id>
      </PDBx:pdbx_poly_seq_scheme>
      <PDBx:pdbx_poly_seq_scheme asym_id="A" entity_id="1" mon_id="C" seq_id="16">
         <PDBx:auth_mon_id>C</PDBx:auth_mon_id>
         <PDBx:auth_seq_num>16</PDBx:auth_seq_num>
         <PDBx:hetero>n</PDBx:hetero>
         <PDBx:ndb_seq_num>16</PDBx:ndb_seq_num>
         <PDBx:pdb_ins_code xsi:nil="true" />
         <PDBx:pdb_mon_id>C</PDBx:pdb_mon_id>
         <PDBx:pdb_seq_num>16</PDBx:pdb_seq_num>
         <PDBx:pdb_strand_id>A</PDBx:pdb_strand_id>
      </PDBx:pdbx_poly_seq_scheme>
      <PDBx:pdbx_poly_seq_scheme asym_id="B" entity_id="2" mon_id="G" seq_id="1">
         <PDBx:auth_mon_id>G</PDBx:auth_mon_id>
         <PDBx:auth_seq_num>17</PDBx:auth_seq_num>
         <PDBx:hetero>n</PDBx:hetero>
         <PDBx:ndb_seq_num>1</PDBx:ndb_seq_num>
         <PDBx:pdb_ins_code xsi:nil="true" />
         <PDBx:pdb_mon_id>G</PDBx:pdb_mon_id>
         <PDBx:pdb_seq_num>17</PDBx:pdb_seq_num>
         <PDBx:pdb_strand_id>B</PDBx:pdb_strand_id>
      </PDBx:pdbx_poly_seq_scheme>
      <PDBx:pdbx_poly_seq_scheme asym_id="B" entity_id="2" mon_id="C" seq_id="2">
         <PDBx:auth_mon_id>C</PDBx:auth_mon_id>
         <PDBx:auth_seq_num>18</PDBx:auth_seq_num>
         <PDBx:hetero>n</PDBx:hetero>
         <PDBx:ndb_seq_num>2</PDBx:ndb_seq_num>
         <PDBx:pdb_ins_code xsi:nil="true" />
         <PDBx:pdb_mon_id>C</PDBx:pdb_mon_id>
         <PDBx:pdb_seq_num>18</PDBx:pdb_seq_num>
         <PDBx:pdb_strand_id>B</PDBx:pdb_strand_id>
      </PDBx:pdbx_poly_seq_scheme>
      <PDBx:pdbx_poly_seq_scheme asym_id="B" entity_id="2" mon_id="G" seq_id="3">
         <PDBx:auth_mon_id>G</PDBx:auth_mon_id>
         <PDBx:auth_seq_num>19</PDBx:auth_seq_num>
         <PDBx:hetero>n</PDBx:hetero>
         <PDBx:ndb_seq_num>3</PDBx:ndb_seq_num>
         <PDBx:pdb_ins_code xsi:nil="true" />
         <PDBx:pdb_mon_id>G</PDBx:pdb_mon_id>
         <PDBx:pdb_seq_num>19</PDBx:pdb_seq_num>
         <PDBx:pdb_strand_id>B</PDBx:pdb_strand_id>
      </PDBx:pdbx_poly_seq_scheme>
      <PDBx:pdbx_poly_seq_scheme asym_id="B" entity_id="2" mon_id="U" seq_id="4">
         <PDBx:auth_mon_id>U</PDBx:auth_mon_id>
         <PDBx:auth_seq_num>20</PDBx:auth_seq_num>
         <PDBx:hetero>n</PDBx:hetero>
         <PDBx:ndb_seq_num>4</PDBx:ndb_seq_num>
         <PDBx:pdb_ins_code xsi:nil="true" />
         <PDBx:pdb_mon_id>U</PDBx:pdb_mon_id>
         <PDBx:pdb_seq_num>20</PDBx:pdb_seq_num>
         <PDBx:pdb_strand_id>B</PDBx:pdb_strand_id>
      </PDBx:pdbx_poly_seq_scheme>
      <PDBx:pdbx_poly_seq_scheme asym_id="B" entity_id="2" mon_id="C" seq_id="5">
         <PDBx:auth_mon_id>C</PDBx:auth_mon_id>
         <PDBx:auth_seq_num>21</PDBx:auth_seq_num>
         <PDBx:hetero>n</PDBx:hetero>
         <PDBx:ndb_seq_num>5</PDBx:ndb_seq_num>
         <PDBx:pdb_ins_code xsi:nil="true" />
         <PDBx:pdb_mon_id>C</PDBx:pdb_mon_id>
         <PDBx:pdb_seq_num>21</PDBx:pdb_seq_num>
         <PDBx:pdb_strand_id>B</PDBx:pdb_strand_id>
      </PDBx:pdbx_poly_seq_scheme>
      <PDBx:pdbx_poly_seq_scheme asym_id="B" entity_id="2" mon_id="C" seq_id="6">
         <PDBx:auth_mon_id>C</PDBx:auth_mon_id>
         <PDBx:auth_seq_num>22</PDBx:auth_seq_num>
         <PDBx:hetero>n</PDBx:hetero>
         <PDBx:ndb_seq_num>6</PDBx:ndb_seq_num>
         <PDBx:pdb_ins_code xsi:nil="true" />
         <PDBx:pdb_mon_id>C</PDBx:pdb_mon_id>
         <PDBx:pdb_seq_num>22</PDBx:pdb_seq_num>
         <PDBx:pdb_strand_id>B</PDBx:pdb_strand_id>
      </PDBx:pdbx_poly_seq_scheme>
      <PDBx:pdbx_poly_seq_scheme asym_id="B" entity_id="2" mon_id="C" seq_id="7">
         <PDBx:auth_mon_id>C</PDBx:auth_mon_id>
         <PDBx:auth_seq_num>23</PDBx:auth_seq_num>
         <PDBx:hetero>n</PDBx:hetero>
         <PDBx:ndb_seq_num>7</PDBx:ndb_seq_num>
         <PDBx:pdb_ins_code xsi:nil="true" />
         <PDBx:pdb_mon_id>C</PDBx:pdb_mon_id>
         <PDBx:pdb_seq_num>23</PDBx:pdb_seq_num>
         <PDBx:pdb_strand_id>B</PDBx:pdb_strand_id>
      </PDBx:pdbx_poly_seq_scheme>
      <PDBx:pdbx_poly_seq_scheme asym_id="B" entity_id="2" mon_id="U" seq_id="8">
         <PDBx:auth_mon_id>U</PDBx:auth_mon_id>
         <PDBx:auth_seq_num>24</PDBx:auth_seq_num>
         <PDBx:hetero>n</PDBx:hetero>
         <PDBx:ndb_seq_num>8</PDBx:ndb_seq_num>
         <PDBx:pdb_ins_code xsi:nil="true" />
         <PDBx:pdb_mon_id>U</PDBx:pdb_mon_id>
         <PDBx:pdb_seq_num>24</PDBx:pdb_seq_num>
         <PDBx:pdb_strand_id>B</PDBx:pdb_strand_id>
      </PDBx:pdbx_poly_seq_scheme>
      <PDBx:pdbx_poly_seq_scheme asym_id="B" entity_id="2" mon_id="C" seq_id="9">
         <PDBx:auth_mon_id>C</PDBx:auth_mon_id>
         <PDBx:auth_seq_num>25</PDBx:auth_seq_num>
         <PDBx:hetero>n</PDBx:hetero>
         <PDBx:ndb_seq_num>9</PDBx:ndb_seq_num>
         <PDBx:pdb_ins_code xsi:nil="true" />
         <PDBx:pdb_mon_id>C</PDBx:pdb_mon_id>
         <PDBx:pdb_seq_num>25</PDBx:pdb_seq_num>
         <PDBx:pdb_strand_id>B</PDBx:pdb_strand_id>
      </PDBx:pdbx_poly_seq_scheme>
   </PDBx:pdbx_poly_seq_schemeCategory>
   <PDBx:pdbx_validate_close_contactCategory>
      <PDBx:pdbx_validate_close_contact id="1">
         <PDBx:PDB_model_num>1</PDBx:PDB_model_num>
         <PDBx:auth_asym_id_1>A</PDBx:auth_asym_id_1>
         <PDBx:auth_asym_id_2>A</PDBx:auth_asym_id_2>
         <PDBx:auth_atom_id_1>HO2&apos;</PDBx:auth_atom_id_1>
         <PDBx:auth_atom_id_2>O5&apos;</PDBx:auth_atom_id_2>
         <PDBx:auth_comp_id_1>G</PDBx:auth_comp_id_1>
         <PDBx:auth_comp_id_2>G</PDBx:auth_comp_id_2>
         <PDBx:auth_seq_id_1>7</PDBx:auth_seq_id_1>
         <PDBx:auth_seq_id_2>8</PDBx:auth_seq_id_2>
         <PDBx:dist>1.42</PDBx:dist>
      </PDBx:pdbx_validate_close_contact>
      <PDBx:pdbx_validate_close_contact id="2">
         <PDBx:PDB_model_num>1</PDBx:PDB_model_num>
         <PDBx:auth_asym_id_1>B</PDBx:auth_asym_id_1>
         <PDBx:auth_asym_id_2>B</PDBx:auth_asym_id_2>
         <PDBx:auth_atom_id_1>HO2&apos;</PDBx:auth_atom_id_1>
         <PDBx:auth_atom_id_2>O4&apos;</PDBx:auth_atom_id_2>
         <PDBx:auth_comp_id_1>C</PDBx:auth_comp_id_1>
         <PDBx:auth_comp_id_2>U</PDBx:auth_comp_id_2>
         <PDBx:auth_seq_id_1>23</PDBx:auth_seq_id_1>
         <PDBx:auth_seq_id_2>24</PDBx:auth_seq_id_2>
         <PDBx:dist>1.51</PDBx:dist>
      </PDBx:pdbx_validate_close_contact>
      <PDBx:pdbx_validate_close_contact id="3">
         <PDBx:PDB_model_num>1</PDBx:PDB_model_num>
         <PDBx:auth_asym_id_1>A</PDBx:auth_asym_id_1>
         <PDBx:auth_asym_id_2>B</PDBx:auth_asym_id_2>
         <PDBx:auth_atom_id_1>H62</PDBx:auth_atom_id_1>
         <PDBx:auth_atom_id_2>O2&apos;</PDBx:auth_atom_id_2>
         <PDBx:auth_comp_id_1>A</PDBx:auth_comp_id_1>
         <PDBx:auth_comp_id_2>C</PDBx:auth_comp_id_2>
         <PDBx:auth_seq_id_1>9</PDBx:auth_seq_id_1>
         <PDBx:auth_seq_id_2>21</PDBx:auth_seq_id_2>
         <PDBx:dist>1.55</PDBx:dist>
      </PDBx:pdbx_validate_close_contact>
      <PDBx:pdbx_validate_close_contact id="4">
         <PDBx:PDB_model_num>1</PDBx:PDB_model_num>
         <PDBx:auth_asym_id_1>A</PDBx:auth_asym_id_1>
         <PDBx:auth_asym_id_2>A</PDBx:auth_asym_id_2>
         <PDBx:auth_atom_id_1>H2&apos;</PDBx:auth_atom_id_1>
         <PDBx:auth_atom_id_2>O4&apos;</PDBx:auth_atom_id_2>
         <PDBx:auth_comp_id_1>G</PDBx:auth_comp_id_1>
         <PDBx:auth_comp_id_2>C</PDBx:auth_comp_id_2>
         <PDBx:auth_seq_id_1>13</PDBx:auth_seq_id_1>
         <PDBx:auth_seq_id_2>14</PDBx:auth_seq_id_2>
         <PDBx:dist>1.58</PDBx:dist>
      </PDBx:pdbx_validate_close_contact>
   </PDBx:pdbx_validate_close_contactCategory>
   <PDBx:structCategory>
      <PDBx:struct entry_id="1N53">
         <PDBx:pdbx_descriptor>5&apos;-R(*GP*AP*GP*GP*GP*UP*GP*GP*AP*AP*CP*CP*GP*CP*GP*C)-3&apos;</PDBx:pdbx_descriptor>
         <PDBx:title>SOLUTION STRUCTURE OF B. SUBTILIS T BOX ANTITERMINATOR RNA</PDBx:title>
      </PDBx:struct>
   </PDBx:structCategory>
   <PDBx:struct_asymCategory>
      <PDBx:struct_asym id="A">
         <PDBx:entity_id>1</PDBx:entity_id>
         <PDBx:pdbx_blank_PDB_chainid_flag>N</PDBx:pdbx_blank_PDB_chainid_flag>
         <PDBx:pdbx_modified>N</PDBx:pdbx_modified>
      </PDBx:struct_asym>
      <PDBx:struct_asym id="B">
         <PDBx:entity_id>2</PDBx:entity_id>
         <PDBx:pdbx_blank_PDB_chainid_flag>N</PDBx:pdbx_blank_PDB_chainid_flag>
         <PDBx:pdbx_modified>N</PDBx:pdbx_modified>
      </PDBx:struct_asym>
   </PDBx:struct_asymCategory>
   <PDBx:struct_biolCategory>
      <PDBx:struct_biol id="1"></PDBx:struct_biol>
   </PDBx:struct_biolCategory>
   <PDBx:struct_connCategory>
      <PDBx:struct_conn id="hydrog1">
         <PDBx:conn_type_id>hydrog</PDBx:conn_type_id>
         <PDBx:details>WATSON-CRICK</PDBx:details>
         <PDBx:ptnr1_auth_asym_id>A</PDBx:ptnr1_auth_asym_id>
         <PDBx:ptnr1_auth_comp_id>G</PDBx:ptnr1_auth_comp_id>
         <PDBx:ptnr1_auth_seq_id>1</PDBx:ptnr1_auth_seq_id>
         <PDBx:ptnr1_label_asym_id>A</PDBx:ptnr1_label_asym_id>
         <PDBx:ptnr1_label_atom_id>N1</PDBx:ptnr1_label_atom_id>
         <PDBx:ptnr1_label_comp_id>G</PDBx:ptnr1_label_comp_id>
         <PDBx:ptnr1_label_seq_id>1</PDBx:ptnr1_label_seq_id>
         <PDBx:ptnr1_symmetry>1_555</PDBx:ptnr1_symmetry>
         <PDBx:ptnr2_auth_asym_id>B</PDBx:ptnr2_auth_asym_id>
         <PDBx:ptnr2_auth_comp_id>C</PDBx:ptnr2_auth_comp_id>
         <PDBx:ptnr2_auth_seq_id>25</PDBx:ptnr2_auth_seq_id>
         <PDBx:ptnr2_label_asym_id>B</PDBx:ptnr2_label_asym_id>
         <PDBx:ptnr2_label_atom_id>N3</PDBx:ptnr2_label_atom_id>
         <PDBx:ptnr2_label_comp_id>C</PDBx:ptnr2_label_comp_id>
         <PDBx:ptnr2_label_seq_id>9</PDBx:ptnr2_label_seq_id>
         <PDBx:ptnr2_symmetry>1_555</PDBx:ptnr2_symmetry>
      </PDBx:struct_conn>
      <PDBx:struct_conn id="hydrog2">
         <PDBx:conn_type_id>hydrog</PDBx:conn_type_id>
         <PDBx:details>WATSON-CRICK</PDBx:details>
         <PDBx:ptnr1_auth_asym_id>A</PDBx:ptnr1_auth_asym_id>
         <PDBx:ptnr1_auth_comp_id>G</PDBx:ptnr1_auth_comp_id>
         <PDBx:ptnr1_auth_seq_id>1</PDBx:ptnr1_auth_seq_id>
         <PDBx:ptnr1_label_asym_id>A</PDBx:ptnr1_label_asym_id>
         <PDBx:ptnr1_label_atom_id>N2</PDBx:ptnr1_label_atom_id>
         <PDBx:ptnr1_label_comp_id>G</PDBx:ptnr1_label_comp_id>
         <PDBx:ptnr1_label_seq_id>1</PDBx:ptnr1_label_seq_id>
         <PDBx:ptnr1_symmetry>1_555</PDBx:ptnr1_symmetry>
         <PDBx:ptnr2_auth_asym_id>B</PDBx:ptnr2_auth_asym_id>
         <PDBx:ptnr2_auth_comp_id>C</PDBx:ptnr2_auth_comp_id>
         <PDBx:ptnr2_auth_seq_id>25</PDBx:ptnr2_auth_seq_id>
         <PDBx:ptnr2_label_asym_id>B</PDBx:ptnr2_label_asym_id>
         <PDBx:ptnr2_label_atom_id>O2</PDBx:ptnr2_label_atom_id>
         <PDBx:ptnr2_label_comp_id>C</PDBx:ptnr2_label_comp_id>
         <PDBx:ptnr2_label_seq_id>9</PDBx:ptnr2_label_seq_id>
         <PDBx:ptnr2_symmetry>1_555</PDBx:ptnr2_symmetry>
      </PDBx:struct_conn>
      <PDBx:struct_conn id="hydrog3">
         <PDBx:conn_type_id>hydrog</PDBx:conn_type_id>
         <PDBx:details>WATSON-CRICK</PDBx:details>
         <PDBx:ptnr1_auth_asym_id>A</PDBx:ptnr1_auth_asym_id>
         <PDBx:ptnr1_auth_comp_id>G</PDBx:ptnr1_auth_comp_id>
         <PDBx:ptnr1_auth_seq_id>1</PDBx:ptnr1_auth_seq_id>
         <PDBx:ptnr1_label_asym_id>A</PDBx:ptnr1_label_asym_id>
         <PDBx:ptnr1_label_atom_id>O6</PDBx:ptnr1_label_atom_id>
         <PDBx:ptnr1_label_comp_id>G</PDBx:ptnr1_label_comp_id>
         <PDBx:ptnr1_label_seq_id>1</PDBx:ptnr1_label_seq_id>
         <PDBx:ptnr1_symmetry>1_555</PDBx:ptnr1_symmetry>
         <PDBx:ptnr2_auth_asym_id>B</PDBx:ptnr2_auth_asym_id>
         <PDBx:ptnr2_auth_comp_id>C</PDBx:ptnr2_auth_comp_id>
         <PDBx:ptnr2_auth_seq_id>25</PDBx:ptnr2_auth_seq_id>
         <PDBx:ptnr2_label_asym_id>B</PDBx:ptnr2_label_asym_id>
         <PDBx:ptnr2_label_atom_id>N4</PDBx:ptnr2_label_atom_id>
         <PDBx:ptnr2_label_comp_id>C</PDBx:ptnr2_label_comp_id>
         <PDBx:ptnr2_label_seq_id>9</PDBx:ptnr2_label_seq_id>
         <PDBx:ptnr2_symmetry>1_555</PDBx:ptnr2_symmetry>
      </PDBx:struct_conn>
      <PDBx:struct_conn id="hydrog4">
         <PDBx:conn_type_id>hydrog</PDBx:conn_type_id>
         <PDBx:details>WATSON-CRICK</PDBx:details>
         <PDBx:ptnr1_auth_asym_id>A</PDBx:ptnr1_auth_asym_id>
         <PDBx:ptnr1_auth_comp_id>A</PDBx:ptnr1_auth_comp_id>
         <PDBx:ptnr1_auth_seq_id>2</PDBx:ptnr1_auth_seq_id>
         <PDBx:ptnr1_label_asym_id>A</PDBx:ptnr1_label_asym_id>
         <PDBx:ptnr1_label_atom_id>N1</PDBx:ptnr1_label_atom_id>
         <PDBx:ptnr1_label_comp_id>A</PDBx:ptnr1_label_comp_id>
         <PDBx:ptnr1_label_seq_id>2</PDBx:ptnr1_label_seq_id>
         <PDBx:ptnr1_symmetry>1_555</PDBx:ptnr1_symmetry>
         <PDBx:ptnr2_auth_asym_id>B</PDBx:ptnr2_auth_asym_id>
         <PDBx:ptnr2_auth_comp_id>U</PDBx:ptnr2_auth_comp_id>
         <PDBx:ptnr2_auth_seq_id>24</PDBx:ptnr2_auth_seq_id>
         <PDBx:ptnr2_label_asym_id>B</PDBx:ptnr2_label_asym_id>
         <PDBx:ptnr2_label_atom_id>N3</PDBx:ptnr2_label_atom_id>
         <PDBx:ptnr2_label_comp_id>U</PDBx:ptnr2_label_comp_id>
         <PDBx:ptnr2_label_seq_id>8</PDBx:ptnr2_label_seq_id>
         <PDBx:ptnr2_symmetry>1_555</PDBx:ptnr2_symmetry>
      </PDBx:struct_conn>
      <PDBx:struct_conn id="hydrog5">
         <PDBx:conn_type_id>hydrog</PDBx:conn_type_id>
         <PDBx:details>WATSON-CRICK</PDBx:details>
         <PDBx:ptnr1_auth_asym_id>A</PDBx:ptnr1_auth_asym_id>
         <PDBx:ptnr1_auth_comp_id>A</PDBx:ptnr1_auth_comp_id>
         <PDBx:ptnr1_auth_seq_id>2</PDBx:ptnr1_auth_seq_id>
         <PDBx:ptnr1_label_asym_id>A</PDBx:ptnr1_label_asym_id>
         <PDBx:ptnr1_label_atom_id>N6</PDBx:ptnr1_label_atom_id>
         <PDBx:ptnr1_label_comp_id>A</PDBx:ptnr1_label_comp_id>
         <PDBx:ptnr1_label_seq_id>2</PDBx:ptnr1_label_seq_id>
         <PDBx:ptnr1_symmetry>1_555</PDBx:ptnr1_symmetry>
         <PDBx:ptnr2_auth_asym_id>B</PDBx:ptnr2_auth_asym_id>
         <PDBx:ptnr2_auth_comp_id>U</PDBx:ptnr2_auth_comp_id>
         <PDBx:ptnr2_auth_seq_id>24</PDBx:ptnr2_auth_seq_id>
         <PDBx:ptnr2_label_asym_id>B</PDBx:ptnr2_label_asym_id>
         <PDBx:ptnr2_label_atom_id>O4</PDBx:ptnr2_label_atom_id>
         <PDBx:ptnr2_label_comp_id>U</PDBx:ptnr2_label_comp_id>
         <PDBx:ptnr2_label_seq_id>8</PDBx:ptnr2_label_seq_id>
         <PDBx:ptnr2_symmetry>1_555</PDBx:ptnr2_symmetry>
      </PDBx:struct_conn>
      <PDBx:struct_conn id="hydrog6">
         <PDBx:conn_type_id>hydrog</PDBx:conn_type_id>
         <PDBx:details>WATSON-CRICK</PDBx:details>
         <PDBx:ptnr1_auth_asym_id>A</PDBx:ptnr1_auth_asym_id>
         <PDBx:ptnr1_auth_comp_id>G</PDBx:ptnr1_auth_comp_id>
         <PDBx:ptnr1_auth_seq_id>3</PDBx:ptnr1_auth_seq_id>
         <PDBx:ptnr1_label_asym_id>A</PDBx:ptnr1_label_asym_id>
         <PDBx:ptnr1_label_atom_id>N1</PDBx:ptnr1_label_atom_id>
         <PDBx:ptnr1_label_comp_id>G</PDBx:ptnr1_label_comp_id>
         <PDBx:ptnr1_label_seq_id>3</PDBx:ptnr1_label_seq_id>
         <PDBx:ptnr1_symmetry>1_555</PDBx:ptnr1_symmetry>
         <PDBx:ptnr2_auth_asym_id>B</PDBx:ptnr2_auth_asym_id>
         <PDBx:ptnr2_auth_comp_id>C</PDBx:ptnr2_auth_comp_id>
         <PDBx:ptnr2_auth_seq_id>23</PDBx:ptnr2_auth_seq_id>
         <PDBx:ptnr2_label_asym_id>B</PDBx:ptnr2_label_asym_id>
         <PDBx:ptnr2_label_atom_id>N3</PDBx:ptnr2_label_atom_id>
         <PDBx:ptnr2_label_comp_id>C</PDBx:ptnr2_label_comp_id>
         <PDBx:ptnr2_label_seq_id>7</PDBx:ptnr2_label_seq_id>
         <PDBx:ptnr2_symmetry>1_555</PDBx:ptnr2_symmetry>
      </PDBx:struct_conn>
      <PDBx:struct_conn id="hydrog7">
         <PDBx:conn_type_id>hydrog</PDBx:conn_type_id>
         <PDBx:details>WATSON-CRICK</PDBx:details>
         <PDBx:ptnr1_auth_asym_id>A</PDBx:ptnr1_auth_asym_id>
         <PDBx:ptnr1_auth_comp_id>G</PDBx:ptnr1_auth_comp_id>
         <PDBx:ptnr1_auth_seq_id>3</PDBx:ptnr1_auth_seq_id>
         <PDBx:ptnr1_label_asym_id>A</PDBx:ptnr1_label_asym_id>
         <PDBx:ptnr1_label_atom_id>N2</PDBx:ptnr1_label_atom_id>
         <PDBx:ptnr1_label_comp_id>G</PDBx:ptnr1_label_comp_id>
         <PDBx:ptnr1_label_seq_id>3</PDBx:ptnr1_label_seq_id>
         <PDBx:ptnr1_symmetry>1_555</PDBx:ptnr1_symmetry>
         <PDBx:ptnr2_auth_asym_id>B</PDBx:ptnr2_auth_asym_id>
         <PDBx:ptnr2_auth_comp_id>C</PDBx:ptnr2_auth_comp_id>
         <PDBx:ptnr2_auth_seq_id>23</PDBx:ptnr2_auth_seq_id>
         <PDBx:ptnr2_label_asym_id>B</PDBx:ptnr2_label_asym_id>
         <PDBx:ptnr2_label_atom_id>O2</PDBx:ptnr2_label_atom_id>
         <PDBx:ptnr2_label_comp_id>C</PDBx:ptnr2_label_comp_id>
         <PDBx:ptnr2_label_seq_id>7</PDBx:ptnr2_label_seq_id>
         <PDBx:ptnr2_symmetry>1_555</PDBx:ptnr2_symmetry>
      </PDBx:struct_conn>
      <PDBx:struct_conn id="hydrog8">
         <PDBx:conn_type_id>hydrog</PDBx:conn_type_id>
         <PDBx:details>WATSON-CRICK</PDBx:details>
         <PDBx:ptnr1_auth_asym_id>A</PDBx:ptnr1_auth_asym_id>
         <PDBx:ptnr1_auth_comp_id>G</PDBx:ptnr1_auth_comp_id>
         <PDBx:ptnr1_auth_seq_id>3</PDBx:ptnr1_auth_seq_id>
         <PDBx:ptnr1_label_asym_id>A</PDBx:ptnr1_label_asym_id>
         <PDBx:ptnr1_label_atom_id>O6</PDBx:ptnr1_label_atom_id>
         <PDBx:ptnr1_label_comp_id>G</PDBx:ptnr1_label_comp_id>
         <PDBx:ptnr1_label_seq_id>3</PDBx:ptnr1_label_seq_id>
         <PDBx:ptnr1_symmetry>1_555</PDBx:ptnr1_symmetry>
         <PDBx:ptnr2_auth_asym_id>B</PDBx:ptnr2_auth_asym_id>
         <PDBx:ptnr2_auth_comp_id>C</PDBx:ptnr2_auth_comp_id>
         <PDBx:ptnr2_auth_seq_id>23</PDBx:ptnr2_auth_seq_id>
         <PDBx:ptnr2_label_asym_id>B</PDBx:ptnr2_label_asym_id>
         <PDBx:ptnr2_label_atom_id>N4</PDBx:ptnr2_label_atom_id>
         <PDBx:ptnr2_label_comp_id>C</PDBx:ptnr2_label_comp_id>
         <PDBx:ptnr2_label_seq_id>7</PDBx:ptnr2_label_seq_id>
         <PDBx:ptnr2_symmetry>1_555</PDBx:ptnr2_symmetry>
      </PDBx:struct_conn>
      <PDBx:struct_conn id="hydrog9">
         <PDBx:conn_type_id>hydrog</PDBx:conn_type_id>
         <PDBx:details>WATSON-CRICK</PDBx:details>
         <PDBx:ptnr1_auth_asym_id>A</PDBx:ptnr1_auth_asym_id>
         <PDBx:ptnr1_auth_comp_id>G</PDBx:ptnr1_auth_comp_id>
         <PDBx:ptnr1_auth_seq_id>4</PDBx:ptnr1_auth_seq_id>
         <PDBx:ptnr1_label_asym_id>A</PDBx:ptnr1_label_asym_id>
         <PDBx:ptnr1_label_atom_id>N1</PDBx:ptnr1_label_atom_id>
         <PDBx:ptnr1_label_comp_id>G</PDBx:ptnr1_label_comp_id>
         <PDBx:ptnr1_label_seq_id>4</PDBx:ptnr1_label_seq_id>
         <PDBx:ptnr1_symmetry>1_555</PDBx:ptnr1_symmetry>
         <PDBx:ptnr2_auth_asym_id>B</PDBx:ptnr2_auth_asym_id>
         <PDBx:ptnr2_auth_comp_id>C</PDBx:ptnr2_auth_comp_id>
         <PDBx:ptnr2_auth_seq_id>22</PDBx:ptnr2_auth_seq_id>
         <PDBx:ptnr2_label_asym_id>B</PDBx:ptnr2_label_asym_id>
         <PDBx:ptnr2_label_atom_id>N3</PDBx:ptnr2_label_atom_id>
         <PDBx:ptnr2_label_comp_id>C</PDBx:ptnr2_label_comp_id>
         <PDBx:ptnr2_label_seq_id>6</PDBx:ptnr2_label_seq_id>
         <PDBx:ptnr2_symmetry>1_555</PDBx:ptnr2_symmetry>
      </PDBx:struct_conn>
      <PDBx:struct_conn id="hydrog10">
         <PDBx:conn_type_id>hydrog</PDBx:conn_type_id>
         <PDBx:details>WATSON-CRICK</PDBx:details>
         <PDBx:ptnr1_auth_asym_id>A</PDBx:ptnr1_auth_asym_id>
         <PDBx:ptnr1_auth_comp_id>G</PDBx:ptnr1_auth_comp_id>
         <PDBx:ptnr1_auth_seq_id>4</PDBx:ptnr1_auth_seq_id>
         <PDBx:ptnr1_label_asym_id>A</PDBx:ptnr1_label_asym_id>
         <PDBx:ptnr1_label_atom_id>N2</PDBx:ptnr1_label_atom_id>
         <PDBx:ptnr1_label_comp_id>G</PDBx:ptnr1_label_comp_id>
         <PDBx:ptnr1_label_seq_id>4</PDBx:ptnr1_label_seq_id>
         <PDBx:ptnr1_symmetry>1_555</PDBx:ptnr1_symmetry>
         <PDBx:ptnr2_auth_asym_id>B</PDBx:ptnr2_auth_asym_id>
         <PDBx:ptnr2_auth_comp_id>C</PDBx:ptnr2_auth_comp_id>
         <PDBx:ptnr2_auth_seq_id>22</PDBx:ptnr2_auth_seq_id>
         <PDBx:ptnr2_label_asym_id>B</PDBx:ptnr2_label_asym_id>
         <PDBx:ptnr2_label_atom_id>O2</PDBx:ptnr2_label_atom_id>
         <PDBx:ptnr2_label_comp_id>C</PDBx:ptnr2_label_comp_id>
         <PDBx:ptnr2_label_seq_id>6</PDBx:ptnr2_label_seq_id>
         <PDBx:ptnr2_symmetry>1_555</PDBx:ptnr2_symmetry>
      </PDBx:struct_conn>
      <PDBx:struct_conn id="hydrog11">
         <PDBx:conn_type_id>hydrog</PDBx:conn_type_id>
         <PDBx:details>WATSON-CRICK</PDBx:details>
         <PDBx:ptnr1_auth_asym_id>A</PDBx:ptnr1_auth_asym_id>
         <PDBx:ptnr1_auth_comp_id>G</PDBx:ptnr1_auth_comp_id>
         <PDBx:ptnr1_auth_seq_id>4</PDBx:ptnr1_auth_seq_id>
         <PDBx:ptnr1_label_asym_id>A</PDBx:ptnr1_label_asym_id>
         <PDBx:ptnr1_label_atom_id>O6</PDBx:ptnr1_label_atom_id>
         <PDBx:ptnr1_label_comp_id>G</PDBx:ptnr1_label_comp_id>
         <PDBx:ptnr1_label_seq_id>4</PDBx:ptnr1_label_seq_id>
         <PDBx:ptnr1_symmetry>1_555</PDBx:ptnr1_symmetry>
         <PDBx:ptnr2_auth_asym_id>B</PDBx:ptnr2_auth_asym_id>
         <PDBx:ptnr2_auth_comp_id>C</PDBx:ptnr2_auth_comp_id>
         <PDBx:ptnr2_auth_seq_id>22</PDBx:ptnr2_auth_seq_id>
         <PDBx:ptnr2_label_asym_id>B</PDBx:ptnr2_label_asym_id>
         <PDBx:ptnr2_label_atom_id>N4</PDBx:ptnr2_label_atom_id>
         <PDBx:ptnr2_label_comp_id>C</PDBx:ptnr2_label_comp_id>
         <PDBx:ptnr2_label_seq_id>6</PDBx:ptnr2_label_seq_id>
         <PDBx:ptnr2_symmetry>1_555</PDBx:ptnr2_symmetry>
      </PDBx:struct_conn>
      <PDBx:struct_conn id="hydrog12">
         <PDBx:conn_type_id>hydrog</PDBx:conn_type_id>
         <PDBx:details>TYPE_28_PAIR</PDBx:details>
         <PDBx:ptnr1_auth_asym_id>A</PDBx:ptnr1_auth_asym_id>
         <PDBx:ptnr1_auth_comp_id>G</PDBx:ptnr1_auth_comp_id>
         <PDBx:ptnr1_auth_seq_id>13</PDBx:ptnr1_auth_seq_id>
         <PDBx:ptnr1_label_asym_id>A</PDBx:ptnr1_label_asym_id>
         <PDBx:ptnr1_label_atom_id>N1</PDBx:ptnr1_label_atom_id>
         <PDBx:ptnr1_label_comp_id>G</PDBx:ptnr1_label_comp_id>
         <PDBx:ptnr1_label_seq_id>13</PDBx:ptnr1_label_seq_id>
         <PDBx:ptnr1_symmetry>1_555</PDBx:ptnr1_symmetry>
         <PDBx:ptnr2_auth_asym_id>B</PDBx:ptnr2_auth_asym_id>
         <PDBx:ptnr2_auth_comp_id>U</PDBx:ptnr2_auth_comp_id>
         <PDBx:ptnr2_auth_seq_id>20</PDBx:ptnr2_auth_seq_id>
         <PDBx:ptnr2_label_asym_id>B</PDBx:ptnr2_label_asym_id>
         <PDBx:ptnr2_label_atom_id>O2</PDBx:ptnr2_label_atom_id>
         <PDBx:ptnr2_label_comp_id>U</PDBx:ptnr2_label_comp_id>
         <PDBx:ptnr2_label_seq_id>4</PDBx:ptnr2_label_seq_id>
         <PDBx:ptnr2_symmetry>1_555</PDBx:ptnr2_symmetry>
      </PDBx:struct_conn>
      <PDBx:struct_conn id="hydrog13">
         <PDBx:conn_type_id>hydrog</PDBx:conn_type_id>
         <PDBx:details>TYPE_28_PAIR</PDBx:details>
         <PDBx:ptnr1_auth_asym_id>A</PDBx:ptnr1_auth_asym_id>
         <PDBx:ptnr1_auth_comp_id>G</PDBx:ptnr1_auth_comp_id>
         <PDBx:ptnr1_auth_seq_id>13</PDBx:ptnr1_auth_seq_id>
         <PDBx:ptnr1_label_asym_id>A</PDBx:ptnr1_label_asym_id>
         <PDBx:ptnr1_label_atom_id>O6</PDBx:ptnr1_label_atom_id>
         <PDBx:ptnr1_label_comp_id>G</PDBx:ptnr1_label_comp_id>
         <PDBx:ptnr1_label_seq_id>13</PDBx:ptnr1_label_seq_id>
         <PDBx:ptnr1_symmetry>1_555</PDBx:ptnr1_symmetry>
         <PDBx:ptnr2_auth_asym_id>B</PDBx:ptnr2_auth_asym_id>
         <PDBx:ptnr2_auth_comp_id>U</PDBx:ptnr2_auth_comp_id>
         <PDBx:ptnr2_auth_seq_id>20</PDBx:ptnr2_auth_seq_id>
         <PDBx:ptnr2_label_asym_id>B</PDBx:ptnr2_label_asym_id>
         <PDBx:ptnr2_label_atom_id>N3</PDBx:ptnr2_label_atom_id>
         <PDBx:ptnr2_label_comp_id>U</PDBx:ptnr2_label_comp_id>
         <PDBx:ptnr2_label_seq_id>4</PDBx:ptnr2_label_seq_id>
         <PDBx:ptnr2_symmetry>1_555</PDBx:ptnr2_symmetry>
      </PDBx:struct_conn>
      <PDBx:struct_conn id="hydrog14">
         <PDBx:conn_type_id>hydrog</PDBx:conn_type_id>
         <PDBx:details>WATSON-CRICK</PDBx:details>
         <PDBx:ptnr1_auth_asym_id>A</PDBx:ptnr1_auth_asym_id>
         <PDBx:ptnr1_auth_comp_id>C</PDBx:ptnr1_auth_comp_id>
         <PDBx:ptnr1_auth_seq_id>14</PDBx:ptnr1_auth_seq_id>
         <PDBx:ptnr1_label_asym_id>A</PDBx:ptnr1_label_asym_id>
         <PDBx:ptnr1_label_atom_id>N3</PDBx:ptnr1_label_atom_id>
         <PDBx:ptnr1_label_comp_id>C</PDBx:ptnr1_label_comp_id>
         <PDBx:ptnr1_label_seq_id>14</PDBx:ptnr1_label_seq_id>
         <PDBx:ptnr1_symmetry>1_555</PDBx:ptnr1_symmetry>
         <PDBx:ptnr2_auth_asym_id>B</PDBx:ptnr2_auth_asym_id>
         <PDBx:ptnr2_auth_comp_id>G</PDBx:ptnr2_auth_comp_id>
         <PDBx:ptnr2_auth_seq_id>19</PDBx:ptnr2_auth_seq_id>
         <PDBx:ptnr2_label_asym_id>B</PDBx:ptnr2_label_asym_id>
         <PDBx:ptnr2_label_atom_id>N1</PDBx:ptnr2_label_atom_id>
         <PDBx:ptnr2_label_comp_id>G</PDBx:ptnr2_label_comp_id>
         <PDBx:ptnr2_label_seq_id>3</PDBx:ptnr2_label_seq_id>
         <PDBx:ptnr2_symmetry>1_555</PDBx:ptnr2_symmetry>
      </PDBx:struct_conn>
      <PDBx:struct_conn id="hydrog15">
         <PDBx:conn_type_id>hydrog</PDBx:conn_type_id>
         <PDBx:details>WATSON-CRICK</PDBx:details>
         <PDBx:ptnr1_auth_asym_id>A</PDBx:ptnr1_auth_asym_id>
         <PDBx:ptnr1_auth_comp_id>C</PDBx:ptnr1_auth_comp_id>
         <PDBx:ptnr1_auth_seq_id>14</PDBx:ptnr1_auth_seq_id>
         <PDBx:ptnr1_label_asym_id>A</PDBx:ptnr1_label_asym_id>
         <PDBx:ptnr1_label_atom_id>N4</PDBx:ptnr1_label_atom_id>
         <PDBx:ptnr1_label_comp_id>C</PDBx:ptnr1_label_comp_id>
         <PDBx:ptnr1_label_seq_id>14</PDBx:ptnr1_label_seq_id>
         <PDBx:ptnr1_symmetry>1_555</PDBx:ptnr1_symmetry>
         <PDBx:ptnr2_auth_asym_id>B</PDBx:ptnr2_auth_asym_id>
         <PDBx:ptnr2_auth_comp_id>G</PDBx:ptnr2_auth_comp_id>
         <PDBx:ptnr2_auth_seq_id>19</PDBx:ptnr2_auth_seq_id>
         <PDBx:ptnr2_label_asym_id>B</PDBx:ptnr2_label_asym_id>
         <PDBx:ptnr2_label_atom_id>O6</PDBx:ptnr2_label_atom_id>
         <PDBx:ptnr2_label_comp_id>G</PDBx:ptnr2_label_comp_id>
         <PDBx:ptnr2_label_seq_id>3</PDBx:ptnr2_label_seq_id>
         <PDBx:ptnr2_symmetry>1_555</PDBx:ptnr2_symmetry>
      </PDBx:struct_conn>
      <PDBx:struct_conn id="hydrog16">
         <PDBx:conn_type_id>hydrog</PDBx:conn_type_id>
         <PDBx:details>WATSON-CRICK</PDBx:details>
         <PDBx:ptnr1_auth_asym_id>A</PDBx:ptnr1_auth_asym_id>
         <PDBx:ptnr1_auth_comp_id>C</PDBx:ptnr1_auth_comp_id>
         <PDBx:ptnr1_auth_seq_id>14</PDBx:ptnr1_auth_seq_id>
         <PDBx:ptnr1_label_asym_id>A</PDBx:ptnr1_label_asym_id>
         <PDBx:ptnr1_label_atom_id>O2</PDBx:ptnr1_label_atom_id>
         <PDBx:ptnr1_label_comp_id>C</PDBx:ptnr1_label_comp_id>
         <PDBx:ptnr1_label_seq_id>14</PDBx:ptnr1_label_seq_id>
         <PDBx:ptnr1_symmetry>1_555</PDBx:ptnr1_symmetry>
         <PDBx:ptnr2_auth_asym_id>B</PDBx:ptnr2_auth_asym_id>
         <PDBx:ptnr2_auth_comp_id>G</PDBx:ptnr2_auth_comp_id>
         <PDBx:ptnr2_auth_seq_id>19</PDBx:ptnr2_auth_seq_id>
         <PDBx:ptnr2_label_asym_id>B</PDBx:ptnr2_label_asym_id>
         <PDBx:ptnr2_label_atom_id>N2</PDBx:ptnr2_label_atom_id>
         <PDBx:ptnr2_label_comp_id>G</PDBx:ptnr2_label_comp_id>
         <PDBx:ptnr2_label_seq_id>3</PDBx:ptnr2_label_seq_id>
         <PDBx:ptnr2_symmetry>1_555</PDBx:ptnr2_symmetry>
      </PDBx:struct_conn>
      <PDBx:struct_conn id="hydrog17">
         <PDBx:conn_type_id>hydrog</PDBx:conn_type_id>
         <PDBx:details>WATSON-CRICK</PDBx:details>
         <PDBx:ptnr1_auth_asym_id>A</PDBx:ptnr1_auth_asym_id>
         <PDBx:ptnr1_auth_comp_id>G</PDBx:ptnr1_auth_comp_id>
         <PDBx:ptnr1_auth_seq_id>15</PDBx:ptnr1_auth_seq_id>
         <PDBx:ptnr1_label_asym_id>A</PDBx:ptnr1_label_asym_id>
         <PDBx:ptnr1_label_atom_id>N1</PDBx:ptnr1_label_atom_id>
         <PDBx:ptnr1_label_comp_id>G</PDBx:ptnr1_label_comp_id>
         <PDBx:ptnr1_label_seq_id>15</PDBx:ptnr1_label_seq_id>
         <PDBx:ptnr1_symmetry>1_555</PDBx:ptnr1_symmetry>
         <PDBx:ptnr2_auth_asym_id>B</PDBx:ptnr2_auth_asym_id>
         <PDBx:ptnr2_auth_comp_id>C</PDBx:ptnr2_auth_comp_id>
         <PDBx:ptnr2_auth_seq_id>18</PDBx:ptnr2_auth_seq_id>
         <PDBx:ptnr2_label_asym_id>B</PDBx:ptnr2_label_asym_id>
         <PDBx:ptnr2_label_atom_id>N3</PDBx:ptnr2_label_atom_id>
         <PDBx:ptnr2_label_comp_id>C</PDBx:ptnr2_label_comp_id>
         <PDBx:ptnr2_label_seq_id>2</PDBx:ptnr2_label_seq_id>
         <PDBx:ptnr2_symmetry>1_555</PDBx:ptnr2_symmetry>
      </PDBx:struct_conn>
      <PDBx:struct_conn id="hydrog18">
         <PDBx:conn_type_id>hydrog</PDBx:conn_type_id>
         <PDBx:details>WATSON-CRICK</PDBx:details>
         <PDBx:ptnr1_auth_asym_id>A</PDBx:ptnr1_auth_asym_id>
         <PDBx:ptnr1_auth_comp_id>G</PDBx:ptnr1_auth_comp_id>
         <PDBx:ptnr1_auth_seq_id>15</PDBx:ptnr1_auth_seq_id>
         <PDBx:ptnr1_label_asym_id>A</PDBx:ptnr1_label_asym_id>
         <PDBx:ptnr1_label_atom_id>N2</PDBx:ptnr1_label_atom_id>
         <PDBx:ptnr1_label_comp_id>G</PDBx:ptnr1_label_comp_id>
         <PDBx:ptnr1_label_seq_id>15</PDBx:ptnr1_label_seq_id>
         <PDBx:ptnr1_symmetry>1_555</PDBx:ptnr1_symmetry>
         <PDBx:ptnr2_auth_asym_id>B</PDBx:ptnr2_auth_asym_id>
         <PDBx:ptnr2_auth_comp_id>C</PDBx:ptnr2_auth_comp_id>
         <PDBx:ptnr2_auth_seq_id>18</PDBx:ptnr2_auth_seq_id>
         <PDBx:ptnr2_label_asym_id>B</PDBx:ptnr2_label_asym_id>
         <PDBx:ptnr2_label_atom_id>O2</PDBx:ptnr2_label_atom_id>
         <PDBx:ptnr2_label_comp_id>C</PDBx:ptnr2_label_comp_id>
         <PDBx:ptnr2_label_seq_id>2</PDBx:ptnr2_label_seq_id>
         <PDBx:ptnr2_symmetry>1_555</PDBx:ptnr2_symmetry>
      </PDBx:struct_conn>
      <PDBx:struct_conn id="hydrog19">
         <PDBx:conn_type_id>hydrog</PDBx:conn_type_id>
         <PDBx:details>WATSON-CRICK</PDBx:details>
         <PDBx:ptnr1_auth_asym_id>A</PDBx:ptnr1_auth_asym_id>
         <PDBx:ptnr1_auth_comp_id>G</PDBx:ptnr1_auth_comp_id>
         <PDBx:ptnr1_auth_seq_id>15</PDBx:ptnr1_auth_seq_id>
         <PDBx:ptnr1_label_asym_id>A</PDBx:ptnr1_label_asym_id>
         <PDBx:ptnr1_label_atom_id>O6</PDBx:ptnr1_label_atom_id>
         <PDBx:ptnr1_label_comp_id>G</PDBx:ptnr1_label_comp_id>
         <PDBx:ptnr1_label_seq_id>15</PDBx:ptnr1_label_seq_id>
         <PDBx:ptnr1_symmetry>1_555</PDBx:ptnr1_symmetry>
         <PDBx:ptnr2_auth_asym_id>B</PDBx:ptnr2_auth_asym_id>
         <PDBx:ptnr2_auth_comp_id>C</PDBx:ptnr2_auth_comp_id>
         <PDBx:ptnr2_auth_seq_id>18</PDBx:ptnr2_auth_seq_id>
         <PDBx:ptnr2_label_asym_id>B</PDBx:ptnr2_label_asym_id>
         <PDBx:ptnr2_label_atom_id>N4</PDBx:ptnr2_label_atom_id>
         <PDBx:ptnr2_label_comp_id>C</PDBx:ptnr2_label_comp_id>
         <PDBx:ptnr2_label_seq_id>2</PDBx:ptnr2_label_seq_id>
         <PDBx:ptnr2_symmetry>1_555</PDBx:ptnr2_symmetry>
      </PDBx:struct_conn>
      <PDBx:struct_conn id="hydrog20">
         <PDBx:conn_type_id>hydrog</PDBx:conn_type_id>
         <PDBx:details>WATSON-CRICK</PDBx:details>
         <PDBx:ptnr1_auth_asym_id>A</PDBx:ptnr1_auth_asym_id>
         <PDBx:ptnr1_auth_comp_id>C</PDBx:ptnr1_auth_comp_id>
         <PDBx:ptnr1_auth_seq_id>16</PDBx:ptnr1_auth_seq_id>
         <PDBx:ptnr1_label_asym_id>A</PDBx:ptnr1_label_asym_id>
         <PDBx:ptnr1_label_atom_id>N3</PDBx:ptnr1_label_atom_id>
         <PDBx:ptnr1_label_comp_id>C</PDBx:ptnr1_label_comp_id>
         <PDBx:ptnr1_label_seq_id>16</PDBx:ptnr1_label_seq_id>
         <PDBx:ptnr1_symmetry>1_555</PDBx:ptnr1_symmetry>
         <PDBx:ptnr2_auth_asym_id>B</PDBx:ptnr2_auth_asym_id>
         <PDBx:ptnr2_auth_comp_id>G</PDBx:ptnr2_auth_comp_id>
         <PDBx:ptnr2_auth_seq_id>17</PDBx:ptnr2_auth_seq_id>
         <PDBx:ptnr2_label_asym_id>B</PDBx:ptnr2_label_asym_id>
         <PDBx:ptnr2_label_atom_id>N1</PDBx:ptnr2_label_atom_id>
         <PDBx:ptnr2_label_comp_id>G</PDBx:ptnr2_label_comp_id>
         <PDBx:ptnr2_label_seq_id>1</PDBx:ptnr2_label_seq_id>
         <PDBx:ptnr2_symmetry>1_555</PDBx:ptnr2_symmetry>
      </PDBx:struct_conn>
      <PDBx:struct_conn id="hydrog21">
         <PDBx:conn_type_id>hydrog</PDBx:conn_type_id>
         <PDBx:details>WATSON-CRICK</PDBx:details>
         <PDBx:ptnr1_auth_asym_id>A</PDBx:ptnr1_auth_asym_id>
         <PDBx:ptnr1_auth_comp_id>C</PDBx:ptnr1_auth_comp_id>
         <PDBx:ptnr1_auth_seq_id>16</PDBx:ptnr1_auth_seq_id>
         <PDBx:ptnr1_label_asym_id>A</PDBx:ptnr1_label_asym_id>
         <PDBx:ptnr1_label_atom_id>N4</PDBx:ptnr1_label_atom_id>
         <PDBx:ptnr1_label_comp_id>C</PDBx:ptnr1_label_comp_id>
         <PDBx:ptnr1_label_seq_id>16</PDBx:ptnr1_label_seq_id>
         <PDBx:ptnr1_symmetry>1_555</PDBx:ptnr1_symmetry>
         <PDBx:ptnr2_auth_asym_id>B</PDBx:ptnr2_auth_asym_id>
         <PDBx:ptnr2_auth_comp_id>G</PDBx:ptnr2_auth_comp_id>
         <PDBx:ptnr2_auth_seq_id>17</PDBx:ptnr2_auth_seq_id>
         <PDBx:ptnr2_label_asym_id>B</PDBx:ptnr2_label_asym_id>
         <PDBx:ptnr2_label_atom_id>O6</PDBx:ptnr2_label_atom_id>
         <PDBx:ptnr2_label_comp_id>G</PDBx:ptnr2_label_comp_id>
         <PDBx:ptnr2_label_seq_id>1</PDBx:ptnr2_label_seq_id>
         <PDBx:ptnr2_symmetry>1_555</PDBx:ptnr2_symmetry>
      </PDBx:struct_conn>
      <PDBx:struct_conn id="hydrog22">
         <PDBx:conn_type_id>hydrog</PDBx:conn_type_id>
         <PDBx:details>WATSON-CRICK</PDBx:details>
         <PDBx:ptnr1_auth_asym_id>A</PDBx:ptnr1_auth_asym_id>
         <PDBx:ptnr1_auth_comp_id>C</PDBx:ptnr1_auth_comp_id>
         <PDBx:ptnr1_auth_seq_id>16</PDBx:ptnr1_auth_seq_id>
         <PDBx:ptnr1_label_asym_id>A</PDBx:ptnr1_label_asym_id>
         <PDBx:ptnr1_label_atom_id>O2</PDBx:ptnr1_label_atom_id>
         <PDBx:ptnr1_label_comp_id>C</PDBx:ptnr1_label_comp_id>
         <PDBx:ptnr1_label_seq_id>16</PDBx:ptnr1_label_seq_id>
         <PDBx:ptnr1_symmetry>1_555</PDBx:ptnr1_symmetry>
         <PDBx:ptnr2_auth_asym_id>B</PDBx:ptnr2_auth_asym_id>
         <PDBx:ptnr2_auth_comp_id>G</PDBx:ptnr2_auth_comp_id>
         <PDBx:ptnr2_auth_seq_id>17</PDBx:ptnr2_auth_seq_id>
         <PDBx:ptnr2_label_asym_id>B</PDBx:ptnr2_label_asym_id>
         <PDBx:ptnr2_label_atom_id>N2</PDBx:ptnr2_label_atom_id>
         <PDBx:ptnr2_label_comp_id>G</PDBx:ptnr2_label_comp_id>
         <PDBx:ptnr2_label_seq_id>1</PDBx:ptnr2_label_seq_id>
         <PDBx:ptnr2_symmetry>1_555</PDBx:ptnr2_symmetry>
      </PDBx:struct_conn>
   </PDBx:struct_connCategory>
   <PDBx:struct_conn_typeCategory>
      <PDBx:struct_conn_type id="hydrog">
      </PDBx:struct_conn_type>
   </PDBx:struct_conn_typeCategory>
   <PDBx:struct_keywordsCategory>
      <PDBx:struct_keywords entry_id="1N53">
         <PDBx:pdbx_keywords>RNA</PDBx:pdbx_keywords>
         <PDBx:text>RNA, T box, bulge</PDBx:text>
      </PDBx:struct_keywords>
   </PDBx:struct_keywordsCategory>
   <PDBx:struct_refCategory>
      <PDBx:struct_ref id="1">
         <PDBx:db_code>1N53</PDBx:db_code>
         <PDBx:db_name>PDB</PDBx:db_name>
         <PDBx:entity_id>1</PDBx:entity_id>
         <PDBx:pdbx_db_accession>1N53</PDBx:pdbx_db_accession>
      </PDBx:struct_ref>
      <PDBx:struct_ref id="2">
         <PDBx:db_code>1N53</PDBx:db_code>
         <PDBx:db_name>PDB</PDBx:db_name>
         <PDBx:entity_id>2</PDBx:entity_id>
         <PDBx:pdbx_db_accession>1N53</PDBx:pdbx_db_accession>
      </PDBx:struct_ref>
   </PDBx:struct_refCategory>
   <PDBx:struct_ref_seqCategory>
      <PDBx:struct_ref_seq align_id="1">
         <PDBx:db_align_beg>1</PDBx:db_align_beg>
         <PDBx:db_align_end>16</PDBx:db_align_end>
         <PDBx:pdbx_PDB_id_code>1N53</PDBx:pdbx_PDB_id_code>
         <PDBx:pdbx_auth_seq_align_beg>1</PDBx:pdbx_auth_seq_align_beg>
         <PDBx:pdbx_auth_seq_align_end>16</PDBx:pdbx_auth_seq_align_end>
         <PDBx:pdbx_db_accession>1N53</PDBx:pdbx_db_accession>
         <PDBx:pdbx_strand_id>A</PDBx:pdbx_strand_id>
         <PDBx:ref_id>1</PDBx:ref_id>
         <PDBx:seq_align_beg>1</PDBx:seq_align_beg>
         <PDBx:seq_align_end>16</PDBx:seq_align_end>
      </PDBx:struct_ref_seq>
      <PDBx:struct_ref_seq align_id="2">
         <PDBx:db_align_beg>17</PDBx:db_align_beg>
         <PDBx:db_align_end>25</PDBx:db_align_end>
         <PDBx:pdbx_PDB_id_code>1N53</PDBx:pdbx_PDB_id_code>
         <PDBx:pdbx_auth_seq_align_beg>17</PDBx:pdbx_auth_seq_align_beg>
         <PDBx:pdbx_auth_seq_align_end>25</PDBx:pdbx_auth_seq_align_end>
         <PDBx:pdbx_db_accession>1N53</PDBx:pdbx_db_accession>
         <PDBx:pdbx_strand_id>B</PDBx:pdbx_strand_id>
         <PDBx:ref_id>2</PDBx:ref_id>
         <PDBx:seq_align_beg>1</PDBx:seq_align_beg>
         <PDBx:seq_align_end>9</PDBx:seq_align_end>
      </PDBx:struct_ref_seq>
   </PDBx:struct_ref_seqCategory>
   <PDBx:symmetryCategory>
      <PDBx:symmetry entry_id="1N53">
         <PDBx:Int_Tables_number>1</PDBx:Int_Tables_number>
         <PDBx:space_group_name_H-M>P 1</PDBx:space_group_name_H-M>
      </PDBx:symmetry>
   </PDBx:symmetryCategory>
</PDBx:datablock>
