Structure based on 1nqw

Ideal structure
Name: 5-(6-d-ribitylamino-2,4(1h,3h)pyrimidinedione-5-yl) pentyl-1-phosphonic acid
Formula: C14 H26 N3 O9 P
Weight: 411.345
SMILES: "OC[CH](O)[CH](O)[CH](O)CNC1=C(CCCCC[P](O)(O)=O)C(=O)NC(=O)N1"
Spacial conformation based on PDB 1nqw
RESIDUE   5YL     53
CONECT      O3P    2 P    HOP3
CONECT      P      4 O3P  O1P  O2P  C17 
CONECT      O1P    1 P   
CONECT      O2P    2 P    HOP2
CONECT      C17    4 P    C16  H171 H172
CONECT      C16    4 C17  C15  H161 H162
CONECT      C15    4 C16  C14  H151 H152
CONECT      C14    4 C15  C13  H141 H142
CONECT      C13    4 C14  C5   H131 H132
CONECT      C5     3 C13  C4   C6  
CONECT      C4     3 C5   O4   N3  
CONECT      O4     1 C4  
CONECT      N3     3 C4   C2   HN3 
CONECT      C2     3 N3   O2   N1  
CONECT      O2     1 C2  
CONECT      N1     3 C2   C6   HN1 
CONECT      C6     3 C5   N1   N7  
CONECT      N7     3 C6   C8   HN7 
CONECT      C8     4 N7   C9   H81  H82 
CONECT      C9     4 C8   O9   C10  H91 
CONECT      O9     2 C9   HO9 
CONECT      C10    4 C9   O10  C11  H101
CONECT      O10    2 C10  H10O
CONECT      C11    4 C10  O11  C12  H111
CONECT      O11    2 C11  H11O
CONECT      C12    4 C11  O12  H121 H122
CONECT      O12    2 C12  H12O
CONECT      HOP3   1 O3P 
CONECT      HOP2   1 O2P 
CONECT      H171   1 C17 
CONECT      H172   1 C17 
CONECT      H161   1 C16 
CONECT      H162   1 C16 
CONECT      H151   1 C15 
CONECT      H152   1 C15 
CONECT      H141   1 C14 
CONECT      H142   1 C14 
CONECT      H131   1 C13 
CONECT      H132   1 C13 
CONECT      HN3    1 N3  
CONECT      HN1    1 N1  
CONECT      HN7    1 N7  
CONECT      H81    1 C8  
CONECT      H82    1 C8  
CONECT      H91    1 C9  
CONECT      HO9    1 O9  
CONECT      H101   1 C10 
CONECT      H10O   1 O10 
CONECT      H111   1 C11 
CONECT      H11O   1 O11 
CONECT      H121   1 C12 
CONECT      H122   1 C12 
CONECT      H12O   1 O12 
END   
HET    5YL             53
HETNAM     5YL 5-(6-D-RIBITYLAMINO-2,4(1H,3H)PYRIMIDINEDIONE-5-YL) PEN
HETNAM   2 5YL TYL-1-PHOSPHONIC ACID
FORMUL      5YL    C14 H26 N3 O9 P1

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