Atom Nomenclature for FCK

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 FCK

Atom Name (V3) Atom Name (V2)
C1 C1
C2 C2
C3 C3
C4 C4
C5 C5
C6 C6
C7 C7
O39 O39
C38 C38
O40 O40
C17 C17
N18 N18
C22 C22
C23 C23
O27 O27
N31 N31
C30 C30
C16 C16
N11 N11
C15 C15
C14 C14
O33 O33
N13 N13
C12 C12
O34 O34
H1 H1
H2 H2
H4 H4
H6 H6
H7 H7
H7A H7A
HO40 HO40
H17 H17
H17A H17A
HN18 HN18
H22 H22
H22A H22A
H23 H23
H23A H23A
HN13 HN13
H30 H30
H171 H171
H15 H15