Atom Nomenclature for 3NS

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 3NS

Atom Name (V3) Atom Name (V2)
C1 C1
C2 C2
N1 N1
C14 C14
C15 C15
C16 C16
C17 C17
C18 C18
C19 C19
N3 N3
N4 N4
C20 C20
C21 C21
C3 C3
O1 O1
C4 C4
C5 C5
C6 C6
C7 C7
O2 O2
C8 C8
C9 C9
C13 C13
N2 N2
O5 O5
C10 C10
C11 C11
C12 C12
O3 O3
O4 O4
H1 H1
H1A H1A
H2 H2
H2A H2A
HN1 HN1
H15 H15
H16 H16
H17 H17
H18 H18
H21 H21
H21A H21A
H21B H21B
H4 H4
H4A H4A
H5 H5
H6 H6
H8 H8
H8A H8A
H8B H8B
H9 H9
H9A H9A
H9B H9B
H13 H13
H13A H13A
HN2 HN2
HO5 HO5
H10 H10
H11 H11
H11A H11A
HO3 HO3