Atom Nomenclature for 2IG

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 2IG

Atom Name (V3) Atom Name (V2)
C1 C1
N1 N1
C2 C2
N2 N2
C3 C3
C4 C4
N3 N3
N4 N4
C5 C5
C6 C6
C7 C7
C8 C8
C9 C9
C10 C10
C11 C11
C12 C12
N5 N5
C13 C13
C14 C14
C15 C15
O1 O1
C16 C16
C17 C17
C18 C18
C19 C19
C20 C20
C21 C21
C22 C22
HN31 1HN3
HN32 2HN3
HN41 1HN4
HN42 2HN4
H51 1H5
H52 2H5
H61 1H6
H62 2H6
H63 3H6
H7 H7
H8 H8
H11 H11
H131 1H13
H132 2H13
H141 1H14
H142 2H14
H151 1H15
H152 2H15
H161 1H16
H162 2H16
H163 3H16
H17 H17
H20 H20
H21 H21
H22 H22