Atom Nomenclature for SB5

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 SB5

Atom Name (V3) Atom Name (V2)
FA1 FA1
CA1 CA1
CA2 CA2
CA3 CA3
CA4 CA4
CA5 CA5
CA6 CA6
CB1 CB1
NB2 NB2
CB3 CB3
NB4 NB4
CB5 CB5
CB6 CB6
NB7 NB7
NC1 NC1
CC2 CC2
CC3 CC3
NC4 NC4
CC5 CC5
CD1 CD1
CE1 CE1
CE2 CE2
CE3 CE3
HCA1 HCA1
HCA3 HCA3
HCA4 HCA4
HCA6 HCA6
HCB1 HCB1
HCB6 HCB6
HN71 1HN7
HN72 2HN7
HCC5 HCC5
HCD1 1HCD
HCD2 2HCD
HCE1 HCE1
HC21 1HC2
HC22 2HC2
HC31 1HC3
HC32 2HC3