Atom Nomenclature for 2NI

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 2NI

Atom Name (V3) Atom Name (V2)
C1 C1
C2 C2
C3 C3
C4 C4
C5 C5
C6 C6
C7 C7
C8 C8
C9 C9
C10 C10
C11 C11
C12 C12
C13 C13
N1 N1
O1 O1
C14 C14
C15 C15
N2 N2
C16 C16
C17 C17
O2 O2
N3 N3
O3 O3
H1 H1
H2 H2
H4 H4
H5 H5
H8 H8
H9 H9
H11 H11
H12 H12
H141 1H14
H142 2H14
H151 1H15
H152 2H15
H161 1H16
H162 2H16
H163 3H16
HN3 HN3
HO3 HO3