Atom Nomenclature for IVV

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 IVV

Atom Name (V3) Atom Name (V2)
CA1 CA1
CB1 CB1
CG11 CG11
CG21 CG21
C1 C1
O1 O1
N1 N1
CA2 CA2
C2 C2
O2 O2
CB2 CB2
CG12 CG12
CG22 CG22
N3 N3
CA3 CA3
C3 C3
O3 O3
CB3 CB3
CG13 CG13
CG23 CG23
N4 N4
O4 O4
P P
C5 C5
C6 C6
O6 O6
C7 C7
CA4 CA4
CB4 CB4
CG4 CG4
CP CP
O1P O1P
O2P O2P
CD1 CD1
CD2 CD2
HA1 HA1
HA1A HA1A
HB1 HB1
HG11 HG11
HG1A HG1A
HG1B HG1B
HG21 HG21
HG2A HG2A
HG2B HG2B
HN1 HN1
HA2 HA2
HB2 HB2
HG12 HG12
HG1C HG1C
HG1D HG1D
HG22 HG22
HG2C HG2C
HG2D HG2D
HN3 HN3
HA3 HA3
HB3 HB3
HG13 HG13
HG1E HG1E
HG1F HG1F
HG23 HG23
HG2E HG2E
HG2F HG2F
HN4 HN4
H6 H6
H6A H6A
H7 H7
H7A H7A
H7B H7B
HA4 HA4
HB4 HB4
HB4A HB4A
HG4 HG4
HP HP
HPA HPA
HO2P HO2P
HD14 HD14
HD1A HD1A
HD1B HD1B
HD24 HD24
HD2A HD2A
HD2B HD2B