Atom Nomenclature for K25

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 K25

Atom Name (V3) Atom Name (V2)
C2 C2
C3 C3
C4 C4
C5 C5
N6 N6
C7 C7
C8 C8
C13 C13
N14 N14
N15 N15
C16 C16
C17 C17
BR1 BR1
BR9 BR9
BR10 BR10
BR11 BR11
HN6 HN6
H161 1H16
H162 2H16
H163 3H16
H171 1H17
H172 2H17
H173 3H17