Atom Nomenclature for AN5

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 AN5

Atom Name (V3) Atom Name (V2)
C11 C11
C12 C12
C13 C13
N11 N11
C14 C14
C15 C15
C16 C16
C17 C17
C18 C18
O11 O11
C10 C10
N12 N12
C1 C1
H11 H11
H12 H12
H13 H13
H14 H14
H171 H171
H172 H172
H181 H181
H182 H182
H11C H11C
H12C H12C
H101 H101
H102 H102
H121 H121
H122 H122