Atom Nomenclature for Q12

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 Q12

Atom Name (V3) Atom Name (V2)
C1 C1
N2 N2
C3 C3
N4 N4
C5 C5
C6 C6
C7 C7
C8 C8
C9 C9
C10 C10
N11 N11
N12 N12
C13 C13
C14 C14
C15 C15
C16 C16
C17 C17
C18 C18
C19 C19
O20 O20
C21 C21
O22 O22
C23 C23
H7 H7
H10 H10
HN11 HN11
HN1A HN1A
HN12 HN12
HN1B HN1B
H13 H13
H13A H13A
H13B H13B
H15 H15
H16 H16
H19 H19
H21 H21
H21A H21A
H21B H21B
H23 H23
H23A H23A
H23B H23B