Atom Nomenclature for BIF

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 BIF

Atom Name (V3) Atom Name (V2)
N N
CA CA
C C
OXT OXT
CB CB
CG CG
CD2 CD2
CE2 CE2
CZ CZ
CE1 CE1
CD1 CD1
C8 C8
C9 C9
C10 C10
C11 C11
C12 C12
C13 C13
O O
H 1HN
H2 2HN
HA HA
HXT HXT
HB2 1HB
HB3 2HB
HD2 HD2
HE2 HE2
HE1 HE1
HD1 HD1
H8 H8
H9 H9
H10 H10
H11 H11
H13 H13