Structure based on 1il5

Ideal structure
Name: 2,4-diamino-4,6-dihydroxypyrimidine
Formula: C4 H6 N4 O2
Weight: 142.116
SMILES: "Nc1nc(O)c(N)c(O)n1"
Spacial conformation based on PDB 1il5
RESIDUE   DDP     16
CONECT      C5     3 N7   C4   C6  
CONECT      N7     3 C5   H71  H72 
CONECT      C4     3 C5   N3   O9  
CONECT      N3     2 C4   C2  
CONECT      C2     3 N3   N2   N1  
CONECT      N2     3 C2   H21  H22 
CONECT      N1     2 C2   C6  
CONECT      C6     3 C5   N1   O6  
CONECT      O6     2 C6   H61 
CONECT      O9     2 C4   H91 
CONECT      H71    1 N7  
CONECT      H72    1 N7  
CONECT      H21    1 N2  
CONECT      H22    1 N2  
CONECT      H61    1 O6  
CONECT      H91    1 O9  
END   
HET    DDP             16
HETNAM     DDP 2,4-DIAMINO-4,6-DIHYDROXYPYRIMIDINE
FORMUL      DDP    C4 H6 N4 O2

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