Atom Nomenclature for TI3

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 TI3

Atom Name (V3) Atom Name (V2)
SG SG
CA1 CA1
CB1 CB1
CG1 CG1
CD1 CD1
CD2 CD2
CE1 CE1
CE2 CE2
CZ1 CZ1
C1 C1
O1 O1
N2 N2
CA2 CA2
C2 C2
O2 O2
N3 N3
CD3 CD3
CA3 CA3
CB3 CB3
CG3 CG3
CG4 CG4
CD5 CD5
CD4 CD4
CE5 CE5
CE4 CE4
CZ3 CZ3
C3 C3
O3 O3
OXT OXT
HS HS
HA1 HA1
HB11 1HB1
HB12 2HB1
HD1 HD1
HD2 HD2
HE1 HE1
HE2 HE2
HZ1 HZ1
HN2 HN2
HA21 1HA2
HA22 2HA2
HD3 HD3
HA3 HA3
HB31 1HB3
HB32 2HB3
HG31 1HG3
HG32 2HG3
HD5 HD5
HD4 HD4
HE5 HE5
HE4 HE4
HZ3 HZ3
HXT HXT