Atom Nomenclature for PR2

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 PR2

Atom Name (V3) Atom Name (V2)
C16 C16
C17 C17
C18 C18
C19 C19
N20 N20
C21 C21
C25 C25
C26 C26
S27 S27
N28 N28
C29 C29
C30 C30
C31 C31
C32 C32
N37 N37
S38 S38
O39 O39
O40 O40
O41 O41
C1 C1
C5 C5
C2 C2
C3 C3
C4 C4
N5 N5
C6 C6
C27 C27
C28 C28
N29 N29
H171 1H17
H181 1H18
H191 1H19
H251 1H25
H301 1H30
H311 1H31
H312 2H31
H321 1H32
H322 2H32
H371 1H37
H11 1H1
H12 2H1
H31 1H3
H41 1H4
H61 1H6
H271 1H27
H29 H29