Atom Nomenclature for T3E

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 T3E

Atom Name (V3) Atom Name (V2)
C7A C7A
N6A N6A
C3A C3A
N2A N2A
C1A C1A
C8A C8A
C5A C5A
C4 C4
N3 N3
C2 C2
N7 N7
C1B C1B
C2B C2B
C3B C3B
S7B S7B
O8B O8B
N9B N9B
O1B O1B
C4B C4B
C5B C5B
C6B C6B
N1 N1
C6 C6
C5 C5
C8 C8
N9 N9
S4A S4A
H7A1 H7A1
H7A2 H7A2
H7A3 H7A3
H6A H6A
H8A1 H8A1
H8A2 H8A2
H8A3 H8A3
H7 H7
H2B H2B
H6B H6B
H4B H4B
H9B1 H9B1
H9B2 H9B2
H5B H5B
H6 H6