Atom Nomenclature for AVJ

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 AVJ

Atom Name (V3) Atom Name (V2)
CAA CAA
CAB CAB
CAC CAC
OAH OAH
OAL OAL
CAM CAM
CAP CAP
NAR NAR
NAT NAT
CAX CAX
CAY CAY
CAZ CAZ
CBC CBC
NBE NBE
HAA HAA
HAAA HAAA
HAAB HAAB
HAB HAB
HABA HABA
HABB HABB
HAC HAC
HACA HACA
HACB HACB
HAM HAM
HAP HAP
HAPA HAPA
HNAR HNAR
HAZ HAZ
HBC HBC
HOL HOL