RESIDUE   BB9     12
CONECT      N      3 CA   HN1  HN2 
CONECT      CA     3 N    C    CB  
CONECT      C      3 CA   O    OXT 
CONECT      O      1 C   
CONECT      CB     3 CA   SG   HB  
CONECT      SG     2 CB   HG  
CONECT      OXT    2 C    HXT 
CONECT      HN1    1 N   
CONECT      HN2    1 N   
CONECT      HB     1 CB  
CONECT      HXT    1 OXT 
CONECT      HG     1 SG  
END   
HET    BB9             12
HETNAM     BB9 (2Z)-2-amino-3-sulfanylprop-2-enoic acid
FORMUL      BB9    C3 H5 N1 O2 S1