Atom Nomenclature for 3N1

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 3N1

Atom Name (V3) Atom Name (V2)
CL1 CL1
C2 C2
C3 C3
C5 C5
C6 C6
S7 S7
C8 C8
C9 C9
C10 C10
C14 C14
C17 C17
O18 O18
O19 O19
C21 C21
C23 C23
H3 H3
H10 H10
H10A H10A
H10B H10B
H14 H14
H14A H14A
HO18 HO18
H21 H21
H23 H23