RESIDUE   BB6     15
CONECT      N      3 CA   H    H2  
CONECT      CA     3 N    C    CB  
CONECT      C      3 CA   O    OXT 
CONECT      O      1 C   
CONECT      CB     3 CA   SG   CD  
CONECT      SG     2 CB   HG  
CONECT      CD     4 CB   HD1C HD2C HD3C
CONECT      OXT    2 C    HXT 
CONECT      H      1 N   
CONECT      H2     1 N   
CONECT      HXT    1 OXT 
CONECT      HG     1 SG  
CONECT      HD1C   1 CD  
CONECT      HD2C   1 CD  
CONECT      HD3C   1 CD  
END   
HET    BB6             15
HETNAM     BB6 (2Z)-2-amino-3-sulfanylbut-2-enoic acid
FORMUL      BB6    C4 H7 N O2 S