Structure based on 1tx2

Ideal structure
Name: 6-methylamino-5-nitroisocytosine
Formula: C5 H7 N5 O3
Weight: 185.141
SMILES: "CNC1=C(C(=O)NC(=N1)N)[N+]([O-])=O"
Spacial conformation based on PDB 1tx2
RESIDUE   680     20
CONECT      O3     1 N3  
CONECT      N3     3 O3   O2   C2  
CONECT      O2     1 N3  
CONECT      C2     3 N3   C1   C3  
CONECT      C1     3 C2   N2   N1  
CONECT      N2     3 C1   C5   HN2 
CONECT      C5     4 N2   H51  H52  H53 
CONECT      N1     2 C1   C4  
CONECT      C4     3 N1   N5   N4  
CONECT      N5     3 C4   HN51 HN52
CONECT      N4     3 C4   C3   HN4 
CONECT      C3     3 C2   N4   O1  
CONECT      O1     1 C3  
CONECT      HN2    1 N2  
CONECT      H51    1 C5  
CONECT      H52    1 C5  
CONECT      H53    1 C5  
CONECT      HN51   1 N5  
CONECT      HN52   1 N5  
CONECT      HN4    1 N4  
END   
HET    680             20
HETNAM     680 6-METHYLAMINO-5-NITROISOCYTOSINE
FORMUL      680    C5 H7 N5 O3

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