Atom Nomenclature for 20V

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 20V

Atom Name (V3) Atom Name (V2)
OAK OAK
PBK PBK
OAL OAL
OAC OAC
OAX OAX
CAT CAT
CBE CBE
CBC CBC
CAO CAO
OAB OAB
CBA CBA
OAH OAH
CAY CAY
CAA CAA
NAW NAW
CBD CBD
NAV NAV
NAU NAU
CAZ CAZ
CAR CAR
CBH CBH
CBG CBG
SBM SBM
OAN OAN
OAG OAG
OAF OAF
CAQ CAQ
CBB CBB
NBJ NBJ
OAJ OAJ
OAI OAI
CAS CAS
CBI CBI
CBF CBF
SBL SBL
OAM OAM
OAE OAE
OAD OAD
CAP CAP
H1 H1
H2 H2
H3 H3
H4 H4
H5 H5
H6 H6
H7 H7
H8 H8
H9 H9
H10 H10
H11 H11
H12 H12
H13 H13
H14 H14
H15 H15