Atom Nomenclature for DP3

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 DP3

Atom Name (V3) Atom Name (V2)
N2' N2'
C2' C2'
C1' C1'
N1' N1'
C C
CA CA
N N
CB CB
CG CG
CD CD
NE NE
CZ CZ
NH2 NH2
NH1 NH1
NO NO
O2 O2
O3 O3
H2'1 1H2'
H2'2 2H2'
H11 1H1
H12 2H1
H1'1 1H1'
H1'2 2H1'
H1' H1'
H1 1H
H2 2H
HA HA
HN1 1HN
HN2 2HN
HB1 1HB
HB2 2HB
HG1 1HG
HG2 2HG
HD1 1HD
HD2 2HD
HNE HNE
HH2 HH2
HH1 HH1