Atom Nomenclature for PQC

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 PQC

Atom Name (V3) Atom Name (V2)
C1 C1
C2 C2
C3 C3
C4 C4
C5 C5
S6 S6
C7 C7
C8 C8
C9 C9
C10 C10
C11 C11
C12 C12
C13 C13
C14 C14
C15 C15
N16 N16
N17 N17
C18 C18
N19 N19
C20 C20
C21 C21
C22 C22
C23 C23
C24 C24
C25 C25
S26 S26
O27 O27
O28 O28
N29 N29
C30 C30
H1 H1
H2 H2
H5 H5
H9 H9
H10 H10
H11 H11
H12 H12
H15 H15
HN19 HN19
H21 H21
H22 H22
H23 H23
H24 H24
HN29 HN29
HN2A HN2A
H30 H30