Atom Nomenclature for KAI

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 KAI

Atom Name (V3) Atom Name (V2)
N N
CD CD
CD1 CD1
CD2 CD2
CA CA
CB CB
CB1 CB1
CG CG
CG1 CG1
CG2 CG2
C C
O O
OD1 OD1
OD2 OD2
OXT OXT
HN1 HN1
HD1 HD1
HD2 HD2
HD11 HD11
HD12 HD12
HD21 HD21
HD22 HD22
HD23 HD23
HA HA
HB HB
HB11 HB11
HB12 HB12
HG HG
HOD1 HOD1
HXT HXT