Structure based on 5c3k

Ideal structure
Name: (2s)-1-[(6-aminopyridin-2-yl)amino]-1-oxopropan-2-aminium
Formula: C8 H13 N4 O
Weight: 181.215
SMILES: "C[CH]([NH3+])C(=O)Nc1cccc(N)n1"
Spacial conformation based on PDB 5c3k
RESIDUE   4XF     26
CONECT      C1     4 C2   H19  H18  H20 
CONECT      C2     4 C1   N4   C8   H3  
CONECT      N4     4 C2   H7   H5   H2  
CONECT      C8     3 C2   O9   N10 
CONECT      O9     1 C8  
CONECT      C11    3 C12  N10  N17 
CONECT      C12    3 C11  C13  H22 
CONECT      C13    3 C12  C14  H23 
CONECT      C14    3 C13  C15  H24 
CONECT      C15    3 C14  N16  N17 
CONECT      N10    3 C8   C11  H21 
CONECT      N16    3 C15  H25  H26 
CONECT      N17    2 C11  C15 
CONECT      H19    1 C1  
CONECT      H18    1 C1  
CONECT      H20    1 C1  
CONECT      H3     1 C2  
CONECT      H7     1 N4  
CONECT      H5     1 N4  
CONECT      H22    1 C12 
CONECT      H23    1 C13 
CONECT      H24    1 C14 
CONECT      H21    1 N10 
CONECT      H25    1 N16 
CONECT      H26    1 N16 
CONECT      H2     1 N4  
END   
HET    4XF             26
HETNAM     4XF (2S)-1-[(6-aminopyridin-2-yl)amino]-1-oxopropan-2-amini
HETNAM   2 4XF um
FORMUL      4XF    C8 H13 N4 O1 1+

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