Atom Nomenclature for ML2

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 ML2

Atom Name (V3) Atom Name (V2)
C2 C2
C4 C4
C5 C5
C6 C6
C9 C9
C12 C12
C13 C13
N15 N15
C16 C16
C18 C18
I1 I1
N3 N3
C7 C7
O8 O8
C10 C10
C11 C11
C14 C14
O17 O17
H5 H5
H6 H6
H91 H91
H92 H92
H93 H93
H131 H131
H132 H132
H15 H15
H181 H181
H182 H182
H183 H183
H3 H3
H10 H10
H141 H141
H142 H142