Atom Nomenclature for 422

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 422

Atom Name (V3) Atom Name (V2)
C1 C1
C2 C2
C3 C3
C4 C4
C5 C5
C6 C6
C11 C11
C12 C12
N13 N13
C14 C14
C15 C15
C16 C16
N17 N17
N18 N18
C19 C19
C20 C20
C21 C21
C22 C22
C23 C23
C7 C7
N2 N2
C8 C8
C9 C9
C10 C10
C13 C13
C17 C17
C18 C18
N3 N3
N1 N1
H2 H2
H5 H5
H6 H6
H11 H11
HN13 HN13
HN17 HN17
H19 H19
H20 H20
H22 H22
H71 1H7
H72 2H7
H81 1H8
H82 2H8
H91 1H9
H92 2H9
H101 1H10
H102 2H10
H131 1H13
H132 2H13
H17 H17
H181 1H18
H182 2H18
HN31 1HN3
HN32 2HN3