Atom Nomenclature for PT1

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 PT1

Atom Name (V3) Atom Name (V2)
C2 C2
C3 C3
C5 C5
N6 N6
C7 C7
N9 N9
C10 C10
N11 N11
C12 C12
C21 C21
O22 O22
O1 O1
N4 N4
N8 N8
C13 C13
N14 N14
C15 C15
C16 C16
C17 C17
C18 C18
C19 C19
C20 C20
O23 O23
H111 1H11
H112 2H11
H12 H12
HO1 HO1
H131 1H13
H132 2H13
H14 H14
H16 H16
H17 H17
H18 H18
H19 H19
H23 H23