Structure based on 1run

Ideal structure
Name: adenosine-3',5'-cyclic-monophosphate
Formula: C10 H12 N5 O6 P
Weight: 329.206
SMILES: "Nc1ncnc2n(cnc12)[CH]3O[CH]4CO[P](O)(=O)O[CH]4[CH]3O"
Spacial conformation based on PDB 1run.
Also present in other 143 PDB entries.
RESIDUE   CMP     34
CONECT      P      4 O1P  O2P  O5'  O3' 
CONECT      O1P    1 P   
CONECT      O2P    2 P    HOP2
CONECT      O5'    2 P    C5' 
CONECT      C5'    4 O5'  C4'  H5'1 H5'2
CONECT      C4'    4 C5'  O4'  C3'  H4' 
CONECT      O4'    2 C4'  C1' 
CONECT      C3'    4 C4'  O3'  C2'  H3' 
CONECT      O3'    2 P    C3' 
CONECT      C2'    4 C3'  O2'  C1'  H2' 
CONECT      O2'    2 C2'  HO2'
CONECT      C1'    4 O4'  C2'  N9   H1' 
CONECT      N9     3 C1'  C8   C4  
CONECT      C8     3 N9   N7   H8  
CONECT      N7     2 C8   C5  
CONECT      C5     3 N7   C6   C4  
CONECT      C6     3 C5   N6   N1  
CONECT      N6     3 C6   HN61 HN62
CONECT      N1     2 C6   C2  
CONECT      C2     3 N1   N3   H2  
CONECT      N3     2 C2   C4  
CONECT      C4     3 N9   C5   N3  
CONECT      HOP2   1 O2P 
CONECT      H5'1   1 C5' 
CONECT      H5'2   1 C5' 
CONECT      H4'    1 C4' 
CONECT      H3'    1 C3' 
CONECT      H2'    1 C2' 
CONECT      HO2'   1 O2' 
CONECT      H1'    1 C1' 
CONECT      H8     1 C8  
CONECT      HN61   1 N6  
CONECT      HN62   1 N6  
CONECT      H2     1 C2  
END   
HET    CMP             34
HETSYN     CMP CYCLIC AMP; CAMP
HETNAM     CMP ADENOSINE-3',5'-CYCLIC-MONOPHOSPHATE
FORMUL      CMP    C10 H12 N5 O6 P

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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