Atom Nomenclature for GP3

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 GP3

Atom Name (V3) Atom Name (V2)
N9A AN9
C8A AC8
N7A AN7
C5A AC5
C6A AC6
O6A AO6
N1A AN1
C2A AC2
N2A AN2
N3A AN3
C4A AC4
O5D AO5*
C5D AC5*
C4D AC4*
O4D AO4*
C3D AC3*
O3D AO3*
C2D AC2*
O2D AO2*
C1D AC1*
PA PA
O1A O1A
O2A O2A
O3A O3A
PB PB
O1B O1B
O2B O2B
O3B O3B
PG PG
O1G O1G
O2G O2G
O5E BO5*
C5E BC5*
C4E BC4*
O4E BO4*
C3E BC3*
O3E BO3*
C2E BC2*
O2E BO2*
C1E BC1*
N9B BN9
C8B BC8
N7B BN7
C5B BC5
C6B BC6
O6B BO6
N1B BN1
C2B BC2
N2B BN2
N3B BN3
C4B BC4
H8A AH8
H1A AH1
H21A AH21
H22A AH22
H51A AH51
H52A AH52
H4D AH4*
H3D AH3*
HO3A AHO3
H2D AH2*
HO2A AHO2
H1D AH1*
HOA2 2HOA
HOB2 2HOB
HOG2 2HOG
H51B BH51
H52B BH52
H4E BH4*
H3E BH3*
HO3B BHO3
H2E BH2*
HO2B BHO2
H1E BH1*
H8B BH8
H1B BH1
H21B BH21
H22B BH22