Atom Nomenclature for UC4

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 UC4

Atom Name (V3) Atom Name (V2)
CL CL
C1 C1
C2 C2
C3 C3
C4 C4
C5 C5
C6 C6
O7 O7
C7 C7
O8 O8
C8 C8
C9 C9
C10 C10
OA OA
CB CB
CC CC
S S
CD CD
CE CE
CF CF
OG OG
CG CG
N N
H3 H3
H4 H4
H6 H6
H8 H8
H91 1H9
H92 2H9
H93 3H9
H101 1H10
H102 2H10
H103 3H10
HD1 1HD
HD2 2HD
HE1 1HE
HE2 2HE
HF1 1HF
HF2 2HF
HF3 3HF
HN HN