Atom Nomenclature for SAQ

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 SAQ

Atom Name (V3) Atom Name (V2)
N1 N1
N3 N3
C4 C4
C5 C5
C6 C6
C7 C7
C8 C8
C10 C10
N12 N12
C13 C13
C2 C2
C9 C9
N14 N14
N15 N15
O16 O16
C25 C25
C11 C11
S1 S1
C12 C12
C131 C131
C14 C14
HN1 HN1
H7 H7
H10 H10
HN12 HN12
H2 H2
HN15 HN15
H25 H25
H25A H25A
H9 H9
H101 H101
H11 H11