Atom Nomenclature for TP2

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 TP2

Atom Name (V3) Atom Name (V2)
S1 S1
C2 C2
C3 C3
N4 N4
C5 C5
C6 C6
N7 N7
S8 S8
C9 C9
C10 C10
C11 C11
C12 C12
C13 C13
C14 C14
C15 C15
O16 O16
O17 O17
C18 C18
C19 C19
C20 C20
O21 O21
HS1 HS1
HC21 1HC2
HC22 2HC2
HC31 1HC3
HC32 2HC3
HN41 1HN4
HC61 1HC6
H101 1H10
H111 1H11
H131 1H13
H141 1H14
H151 1H15
H152 2H15
H153 3H15
H181 1H18
H182 2H18
H191 1H19
H192 2H19
H201 1H20
H202 2H20