Atom Nomenclature for 3IG

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 3IG

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
O3 O3
C14 C14
C15 C15
N5 N5
C16 C16
C17 C17
N6 N6
C13 C13
C19 C19
C21 C21
C20 C20
O4 O4
O1 O1
HN31 1HN3
HN32 2HN3
HN41 1HN4
HN42 2HN4
H51 1H5
H52 2H5
H61 1H6
H62 2H6
H63 3H6
H7 H7
H8 H8
H11 H11
H161 1H16
H162 2H16
H171 1H17
H172 2H17
HN6 HN6
H191 1H19
H192 2H19
H193 3H19
H211 1H21
H212 2H21
H213 3H21
H201 1H20
H202 2H20
H203 3H20