Atom Nomenclature for 044

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 044

Atom Name (V3) Atom Name (V2)
CAA CAA
CAB CAB
CAC CAC
NAD NAD
CAE CAE
CAF CAF
CAG CAG
CAH CAH
CAI CAI
CAJ CAJ
OAK OAK
CAL CAL
CAM CAM
CAN CAN
CAO CAO
CAP CAP
CAQ CAQ
NAR NAR
CAS CAS
CAT CAT
CAU CAU
OAV OAV
NAW NAW
CAX CAX
NAY NAY
OAZ OAZ
CBA CBA
CBB CBB
CBC CBC
CBD CBD
CBE CBE
CBF CBF
FBG FBG
CBH CBH
CBI CBI
CBJ CBJ
CBK CBK
OBL OBL
OBM OBM
CBN CBN
HAB HAB
HAC HAC
HAH HAH
HAI HAI
HAJ HAJ
HAM HAM
HAO HAO
HAQ HAQ
HNAR HNAR
HBB HBB
HBC HBC
HBD HBD
HBE HBE
HBF HBF
HBH HBH
HBHA HBHA
HBHB HBHB
HBI HBI
HBIA HBIA
HBJ HBJ
HBK HBK
HBKA HBKA
HBKB HBKB
HOBL HOBL
HBN HBN
HBNA HBNA
HBNB HBNB