Atom Nomenclature for AGM

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 AGM

Atom Name (V3) Atom Name (V2)
N N
CA CA
CB CB
CG CG
CD CD
CE2 CE2
NE1 NE1
CZ CZ
NH1 NH1
NH2 NH2
C C
O O
OXT OXT
H HN1
H2 HN2
HA HA
HB2 HB1
HB3 HB2
HG2 HG1
HG3 HG2
HD HD
HE21 HE21
HE22 HE22
HE23 HE23
HE1 HE1
HH11 HH11
HH12 HH12
HH21 HH21
HH22 HH22
HXT HXT