Atom Nomenclature for A2C

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 A2C

Atom Name (V3) Atom Name (V2)
NAA NAA
CAB CAB
CAC CAC
CAD CAD
CAE CAE
CAF CAF
CAG CAG
CAH CAH
CAI CAI
NAJ NAJ
NAK NAK
CAL CAL
CAM CAM
CAN CAN
OAO OAO
OAP OAP
CAQ CAQ
CAR CAR
CAS CAS
NAT NAT
CAU CAU
NAV NAV
CAW CAW
CAX CAX
NAY NAY
CAZ CAZ
HNAA HNAA
HNAB HNAB
HAD HAD
HAE HAE
HAF HAF
HAG HAG
HNAJ HNAJ
HNAK HNAK
HAL HAL
HOAO HOAO
HOAP HOAP
HAS HAS
HNAT HNAT
HNAC HNAC
HAU HAU
HAW HAW
HAWA HAWA
HAX HAX
HAXA HAXA
HAZ HAZ