Atom Nomenclature for GBN

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 GBN

Atom Name (V3) Atom Name (V2)
N1 N1
C2 C2
C3 C3
C1R C1R
C2R C2R
C3R C3R
C4R C4R
C5R C5R
C6R C6R
C C
OA OA
OB OB
HN11 1HN1
HN12 2HN1
H21 1H2
H22 2H2
H31 1H3
H32 2H3
H2R1 1H2R
H2R2 2H2R
H3R1 1H3R
H3R2 2H3R
H4R1 1H4R
H4R2 2H4R
H5R1 1H5R
H5R2 2H5R
H6R1 1H6R
H6R2 2H6R
HOA HOA