Structure based on 1syh

Ideal structure
Name: (s)-2-amino-3-(1,3,5,7-pentahydro-2,4-dioxo-cyclopenta[e]pyrimidin-1-yl) proionic acid
Formula: C10 H13 N3 O4
Weight: 239.228
SMILES: "N[CH](CN1C(=O)NC(=O)C2=C1CCC2)C(O)=O"
Spacial conformation based on PDB 1syh.
Also present on 1syi
RESIDUE   CPW     30
CONECT      C1     4 N1   C9   H11  H12 
CONECT      N1     3 C1   C2   C3  
CONECT      C2     3 N1   N2   O1  
CONECT      N2     3 C2   C5   HN2 
CONECT      C3     3 N1   C4   C6  
CONECT      O1     1 C2  
CONECT      C4     3 C3   C5   C8  
CONECT      C5     3 N2   C4   O2  
CONECT      O2     1 C5  
CONECT      C6     4 C3   C7   H61  H62 
CONECT      C7     4 C6   C8   H71  H72 
CONECT      C8     4 C4   C7   H81  H82 
CONECT      C9     4 C1   C10  N3   H9  
CONECT      C10    3 C9   O3   O4  
CONECT      O3     2 C10  HO3 
CONECT      O4     1 C10 
CONECT      N3     3 C9   HN31 HN32
CONECT      H11    1 C1  
CONECT      H12    1 C1  
CONECT      HN2    1 N2  
CONECT      H61    1 C6  
CONECT      H62    1 C6  
CONECT      H71    1 C7  
CONECT      H72    1 C7  
CONECT      H81    1 C8  
CONECT      H82    1 C8  
CONECT      H9     1 C9  
CONECT      HO3    1 O3  
CONECT      HN31   1 N3  
CONECT      HN32   1 N3  
END   
HET    CPW             30
HETNAM     CPW (S)-2-AMINO-3-(1,3,5,7-PENTAHYDRO-2,4-DIOXO-CYCLOPENTA[
HETNAM   2 CPW E]PYRIMIDIN-1-YL) PROIONIC ACID
FORMUL      CPW    C10 H13 N3 O4

This OCA MONOMER page
uses Jmol, developed by the Jmol Development Team (color reference)
OCA© by Jaime Prilusky, 1996-2004,2006,2010,2014
Bioinformatics Unit
Weizmann Institute of Science