Atom Nomenclature for CLK

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 CLK

Atom Name (V3) Atom Name (V2)
C1 C1
CL1A CL1A
CL1B CL1B
C2 C2
O2 O2
N2 N2
C3 C3
C4 C4
O4 O4
C5 C5
O5 O5
C6 C6
C7 C7
C8 C8
C9 C9
N9 N9
C10 C10
C11 C11
H1 H1
H2 H2
H3 H3
H4C1 1H4C
H4C2 2H4C
H4 H4
H5 H5
HA HA
H7 H7
H8 H8
H9N1 1H9N
H9N2 2H9N
H10 H10
H11 H11