Atom Nomenclature for RDL

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 RDL

Atom Name (V3) Atom Name (V2)
O15 O15
C15 C15
C14 C14
O14 O14
C13 C13
O13 O13
C12 C12
O12 O12
C11 C11
N9 N9
C8 C8
O8 O8
C7 C7
O7 O7
C10 C10
C5 C5
N6 N6
C4 C4
O4 O4
N3 N3
C2 C2
N1 N1
O2 O2
H15O OH15
H151 1H15
H152 2H15
H141 1H14
H14O OH14
H131 1H13
H13O OH13
H121 1H12
H12O OH12
H111 1H11
H112 2H11
HN6 HN6
HN3 HN3
HN1 HN1