Structure based on 1mm6

Ideal structure
Name: (s)-2-amino-3-(3,5-dioxo-[1,2,4]oxadiazolidin-2-yl)-propionic acid
Formula: C5 H7 N3 O5
Weight: 189.126
SMILES: "N[CH](CN1OC(=O)NC1=O)C(O)=O"
Spacial conformation based on PDB 1mm6.
Also present in other 13 PDB entries.
RESIDUE   QUS     20
CONECT      C01    3 C02  O16  O17 
CONECT      C02    4 C01  C03  NP3  H02 
CONECT      C03    4 C02  N14  H031 H032
CONECT      C04    3 N14  N15  O18 
CONECT      C05    3 N15  O19  O20 
CONECT      NP3    3 C02  HP31 HP32
CONECT      N14    3 C03  C04  O20 
CONECT      N15    3 C04  C05  H15 
CONECT      O16    1 C01 
CONECT      O17    2 C01  H17 
CONECT      O18    1 C04 
CONECT      O19    1 C05 
CONECT      O20    2 C05  N14 
CONECT      H02    1 C02 
CONECT      H031   1 C03 
CONECT      H032   1 C03 
CONECT      HP31   1 NP3 
CONECT      HP32   1 NP3 
CONECT      H15    1 N15 
CONECT      H17    1 O17 
END   
HET    QUS             20
HETSYN     QUS QUISQUALATE
HETNAM     QUS (S)-2-AMINO-3-(3,5-DIOXO-[1,2,4]OXADIAZOLIDIN-2-YL)-PRO
HETNAM   2 QUS PIONIC ACID
FORMUL      QUS    C5 H7 N3 O5

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