Atom Nomenclature for I4A

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 I4A

Atom Name (V3) Atom Name (V2)
O27 O27
C25 C25
O26 O26
C4 C4
C6 C6
C7 C7
C9 C9
C10 C10
C12 C12
C14 C14
C13 C13
C11 C11
C8 C8
C3 C3
C2 C2
C1 C1
N5 N5
C15 C15
C16 C16
C17 C17
C18 C18
C22 C22
N24 N24
O23 O23
C19 C19
C20 C20
C21 C21
HO27 HO27
H10 H10
H10A H10A
H12 H12
H12A H12A
H14 H14
H14A H14A
H13 H13
H13A H13A
H11 H11
H11A H11A
H3 H3
H2 H2
H1 H1
H15 H15
H15A H15A
H17 H17
HN24 HN24
HN2A HN2A
H19 H19
H20 H20
H21 H21