RESIDUE   YV4     15
CONECT      N01    3 C02  H012 H1  
CONECT      C02    4 N01  C03  C06  H021
CONECT      C03    4 C02  C04  H032 H031
CONECT      C04    4 C03  N05  H042 H041
CONECT      N05    3 C04  C06  H051
CONECT      C06    3 C02  N05  O07 
CONECT      O07    1 C06 
CONECT      H012   1 N01 
CONECT      H1     1 N01 
CONECT      H021   1 C02 
CONECT      H032   1 C03 
CONECT      H031   1 C03 
CONECT      H042   1 C04 
CONECT      H041   1 C04 
CONECT      H051   1 N05 
END   
HET    YV4             15
HETNAM     YV4 (3S)-3-aminopyrrolidin-2-one
FORMUL      YV4    C4 H8 N2 O1