Structure based on 3ggj

Ideal structure
Name: {2-[2-(2-amino-6-oxo-1,6-dihydro-9h-purin-9-yl)ethoxy]ethyl}phosphonic acid
Formula: C9 H14 N5 O5 P
Weight: 303.212
SMILES: "NC1=Nc2n(CCOCC[P](O)(O)=O)cnc2C(=O)N1"
Spacial conformation based on PDB 3ggj
RESIDUE   25H     34
CONECT      N1     3 C6   C2   HN1 
CONECT      C8     3 N7   N9   H8  
CONECT      C6     3 N1   C5   O6  
CONECT      N7     2 C8   C5  
CONECT      C5     3 C6   N7   C4  
CONECT      C2     3 N1   N3   N2  
CONECT      OAD    2 PAT  HOAD
CONECT      PAT    4 OAD  OAE  OAC  CAJ 
CONECT      OAE    2 PAT  HOAE
CONECT      OAC    1 PAT 
CONECT      CAJ    4 PAT  CAH  HAJ  HAJA
CONECT      CAH    4 CAJ  OAN  HAH  HAHA
CONECT      OAN    2 CAH  CAG 
CONECT      CAG    4 OAN  CAI  HAG  HAGA
CONECT      CAI    4 CAG  N9   HAI  HAIA
CONECT      N9     3 C8   CAI  C4  
CONECT      C4     3 C5   N9   N3  
CONECT      N3     2 C2   C4  
CONECT      N2     3 C2   HN2  HN2A
CONECT      O6     1 C6  
CONECT      HN1    1 N1  
CONECT      H8     1 C8  
CONECT      HOAD   1 OAD 
CONECT      HOAE   1 OAE 
CONECT      HAJ    1 CAJ 
CONECT      HAJA   1 CAJ 
CONECT      HAH    1 CAH 
CONECT      HAHA   1 CAH 
CONECT      HAG    1 CAG 
CONECT      HAGA   1 CAG 
CONECT      HAI    1 CAI 
CONECT      HAIA   1 CAI 
CONECT      HN2    1 N2  
CONECT      HN2A   1 N2  
END   
HET    25H             34
HETSYN     25H 9-(2-phosphonoethoxyethyl)guanine
HETNAM     25H {2-[2-(2-amino-6-oxo-1,6-dihydro-9H-purin-9-yl)ethoxy]e
HETNAM   2 25H thyl}phosphonic acid
FORMUL      25H    C9 H14 N5 O5 P1

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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