Atom Nomenclature for CLT

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 CLT

Atom Name (V3) Atom Name (V2)
CA CA
CB1 CB1
CG CG
CD CD
CE1 CE1
CE2 CE2
CZ1 CZ1
CZ2 CZ2
CH CH
CB2 CB2
OG1 OG1
OG2 OG2
HA1 1HA
HA2 2HA
HB11 1HB1
HB12 2HB1
HG1 1HG
HG2 2HG
HE1 HE1
HE2 HE2
HZ1 HZ1
HZ2 HZ2
HH HH
HO2 HO2