Atom Nomenclature for RBF

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 RBF

Atom Name (V3) Atom Name (V2)
N1 N1
C2 C2
O2 O2
N3 N3
C4 C4
O4 O4
C4A C4A
N5 N5
C5A C5A
C6 C6
C7 C7
C7M C7M
C8 C8
C8M C8M
C9 C9
C9A C9A
N10 N10
C10 C10
C1' C1'
C2' C2'
O2' O2'
C3' C3'
O3' O3'
C4' C4'
O4' O4'
C5' C5'
O5' O5'
HN3 HN3
HC6 HC6
HC71 HC71
HC72 HC72
HC73 HC73
HC81 HC81
HC82 HC82
HC83 HC83
HC9 HC9
HC11 HC11
HC12 HC12
HC2' HC2'
HO2' HO2'
HC3' HC3'
HO3' HO3'
HC4' HC4'
HO4' HO4'
HC51 HC51
HC52 HC52
HO5' HO5'