Atom Nomenclature for UC3

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 UC3

Atom Name (V3) Atom Name (V2)
C C
S S
N N
C1 C1
C2 C2
C3 C3
C4 C4
CL4 CL4
C5 C5
C6 C6
CA CA
OB OB
OA OA
CC CC
CD CD
CE CE
OF OF
CG CG
CH CH
CI CI
HN HN
H2 H2
H5 H5
H6 H6
HC HC
HD1 1HD
HD2 2HD
HD3 3HD
HE1 1HE
HE2 2HE
HE3 3HE
HG HG
HH1 1HH
HH2 2HH
HH3 3HH
HI1 1HI
HI2 2HI
HI3 3HI