Atom Nomenclature for SB2

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 SB2

Atom Name (V3) Atom Name (V2)
O2 O2
C1 C1
S1 S1
CA1 CA1
CA2 CA2
CA3 CA3
CA4 CA4
CA5 CA5
CA6 CA6
NB1 NB1
CB2 CB2
CB3 CB3
CB4 CB4
CB5 CB5
CB6 CB6
NC1 NC1
CC2 CC2
NC3 NC3
CC4 CC4
CC5 CC5
CD1 CD1
CD2 CD2
CD3 CD3
CD4 CD4
CD5 CD5
CD6 CD6
FD3 FD3
H11 1H1
H12 2H1
H13 3H1
HA1 HA1
HA2 HA2
HA4 HA4
HA5 HA5
HB2 HB2
HB3 HB3
HB5 HB5
HB6 HB6
HN1 HN1
HD1 HD1
HD2 HD2
HD4 HD4
HD5 HD5