Atom Nomenclature for DI7

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 DI7

Atom Name (V3) Atom Name (V2)
C C
N N
O O
CA CA
CB CB
CD CD
OH OH
CZ CZ
CD1 CD1
CD2 CD2
CE1 CE1
CE2 CE2
CE3 CE3
CE4 CE4
OXT OXT
H HN
H2 HNA
HXT HXT
HA HA
HB HB
HBA HBA
HOH HOH
HE1 HE1
HE2 HE2
HE3 HE3
HE3A HE3A
HE3B HE3B
HE4 HE4
HE4A HE4A
HE4B HE4B