Atom Nomenclature for PLF

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 PLF

Atom Name (V3) Atom Name (V2)
O O
C C1
CA1 CA1
CB1 CB1
N2 N2
C2 C2
N3 N3
N1 N1
C1 C
CA CA
CB CB
CG CG
CD CD
N N
OXT OXT
HA1 HA1
HXT HXT
HB11 HB11
HB12 HB12
HB13 HB13
H20 H2
HA HA
HB1C HB1C
HB2C HB2C
H H
HG1C HG1C
HG2C HG2C
HD1C HD1C
HD2C HD2C