Atom Nomenclature for CK6

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 CK6

Atom Name (V3) Atom Name (V2)
C6A C6A
C1A C1A
N2A N2A
C3A C3A
N7A N7A
C8A C8A
C5A C5A
S4A S4A
C4 C4
C5 C5
N3 N3
C2 C2
N1 N1
C6 C6
N7 N7
C1B C1B
C2B C2B
C3B C3B
C6B C6B
C5B C5B
C4B C4B
O7B O7B
H6A1 1H6A
H6A2 2H6A
H6A3 3H6A
H7A H7A
H8A1 1H8A
H8A2 2H8A
H8A3 3H8A
H5 H5
H6 H6
HN7 HN7
H2B H2B
H3B H3B
H6B H6B
H5B H5B
H7B H7B