Atom Nomenclature for OAN

The atom nomenclature in PDB data files was revised with the release of data in the PDB Format Version 3.0. These changes make the PDB atom names used by PDB compliant with existing IUPAC nomenclature for standard amino acid and nucleotides (Pure & Appl. Chem., 70, 117-142, 1998) with the exception of the well established convention for C-terminal atoms OXT and HXT. A small number of additional changes were introduced in Version 3 to make atom labeling more conventional. The following chemical diagrams and tables provide the correspondences between atom names used in Version 3 and Version 2 PDB formats.

Labeled Chemical Diagrams

Chemical diagram with format V3 atom labels (heavy atoms)
Chemical diagram with format V3 atom labels (all atoms)
Chemical diagram with format V2 atom labels (heavy atoms)
Chemical diagram with format V2 atom labels (all atoms)

Atom Name Correspondences for OAN

Atom Name (V3) Atom Name (V2)
CAH CAH
CAG CAG
OAN OAN
NAI NAI
CAB CAB
CAC CAC
OAJ OAJ
CAD CAD
OAK OAK
CAE CAE
CAF CAF
OAM OAM
OAL OAL
CAA CAA
NAY NAY
OAQ OAQ
CAP CAP
OAR OAR
NAO NAO
CAS CAS
CAT CAT
CAU CAU
CAV CAV
CAW CAW
CAX CAX
HAH1 HAH1
HAH2 HAH2
HAH3 HAH3
HAI HAI
HAB HAB
HAC HAC
HAJ HAJ
HAD HAD
HAK HAK
HAE HAE
HAF1 HAF1
HAF2 HAF2
HAM HAM
HAO HAO
HAT HAT
HAU HAU
HAV HAV
HAW HAW
HAX HAX