Atom Nomenclature for HOM

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 HOM

Atom Name (V3) Atom Name (V2)
CA CA
CA2 CA2
CA3 CA3
CA4 CA4
CA5 CA5
CA6 CA6
CA7 CA7
CA8 CA8
CA9 CA9
CB CB
CB7 CB7
CB8 CB8
OA2 OA2
OA3 OA3
OA4 OA4
OA1 OA1
HA41 1HA4
HA61 1HA6
HA71 1HA7
HB1 1HB
HB2 2HB
HB71 1HB7
HB72 2HB7
HB81 1HB8
HB82 2HB8
HB83 3HB8
HO41 1HO4
HO11 1HO1