Atom Nomenclature for DOQ

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 DOQ

Atom Name (V3) Atom Name (V2)
OAD OAD
CAQ CAQ
OAG OAG
CAS CAS
CAB CAB
CAK CAK
CAI CAI
CAJ CAJ
CAP CAP
CAA CAA
CAT CAT
CAL CAL
N N
CA CA
C C
OXT OXT
O O
CB CB
CG CG
CD CD
OE2 OE2
OE1 OE1
HAG HAG
HAS HAS
HAB1 1HAB
HAB2 2HAB
HAB3 3HAB
HAK HAK
HAI HAI
HAJ HAJ
HAA1 1HAA
HAA2 2HAA
HAA3 3HAA
HAT HAT
HAL1 1HAL
HAL2 2HAL
HN HN
HA HA
HO HO
HB HB
HG1 1HG
HG2 2HG
HE2 HE2