Atom Nomenclature for HCW

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 HCW

Atom Name (V3) Atom Name (V2)
OBH OBH
CAV CAV
NAF NAF
CAW CAW
CBB CBB
CBA CBA
CAX CAX
CAY CAY
CAZ CAZ
CBC CBC
CBD CBD
NAG NAG
NAH NAH
CBE CBE
NAI NAI
CBF CBF
CBG CBG
NAJ NAJ
NAE NAE
CAS CAS
CAR CAR
CAQ CAQ
CAP CAP
CAU CAU
CAT CAT
CAN CAN
CAO CAO
NAD NAD
NAC NAC
CAM CAM
NAB NAB
CAL CAL
CAK CAK
NAA NAA
HAF HAF
HAE HAE
HBB HBB
HAX HAX
HBA HBA
HAY HAY
HBD1 HBD1
HBD2 HBD2
HBD3 HBD3
HAH HAH
HAI HAI
HAR HAR
HAT HAT
HAQ HAQ
HAU HAU
HAO1 HAO1
HAO2 HAO2
HAO3 HAO3
HAC HAC
HAL1 HAL1
HAL2 HAL2
HAK1 HAK1
HAK2 HAK2
HBF1 HBF1
HBF2 HBF2
HBG1 HBG1
HBG2 HBG2
HAA HAA