RESIDUE   XRG     19
CONECT      CAB    4 NAF  HAB  HABA HABB
CONECT      NAF    3 CAB  CAI  HNAF
CONECT      CAI    3 NAF  OAD  NAG 
CONECT      OAD    1 CAI 
CONECT      NAG    3 CAI  CAH  HNAG
CONECT      CAH    3 NAG  NAC  NAE 
CONECT      NAC    2 CAH  HNAC
CONECT      NAE    3 CAH  CAA  HNAE
CONECT      CAA    4 NAE  HAA  HAAA HAAB
CONECT      HAB    1 CAB 
CONECT      HABA   1 CAB 
CONECT      HABB   1 CAB 
CONECT      HNAF   1 NAF 
CONECT      HNAG   1 NAG 
CONECT      HNAC   1 NAC 
CONECT      HNAE   1 NAE 
CONECT      HAA    1 CAA 
CONECT      HAAA   1 CAA 
CONECT      HAAB   1 CAA 
END   
HET    XRG             19
HETNAM     XRG 1-methyl-3-(N-methylcarbamimidoyl)urea
FORMUL      XRG    C4 H10 N4 O1