Atom Nomenclature for Q27

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 Q27

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
C20 C20
C21 C21
C22 C22
C23 C23
O24 O24
C25 C25
C26 C26
H7 H7
H10 H10
HN11 HN11
HN1A HN1A
HN12 HN12
HN1B HN1B
H13 H13
H13A H13A
H13B H13B
H16 H16
H17 H17
H20 H20
H21 H21
H22 H22
H23 H23
H25 H25
H25A H25A
H26 H26
H26A H26A
H26B H26B