Atom Nomenclature for XX5

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 XX5

Atom Name (V3) Atom Name (V2)
O1 O1
C2 C2
O3 O3
C4 C4
C5 C5
C6 C6
C7 C7
C8 C8
N9 N9
C10 C10
C11 C11
O12 O12
O13 O13
C14 C14
C15 C15
C16 C16
N17 N17
C18 C18
N19 N19
C20 C20
C21 C21
C22 C22
C23 C23
CL24 CL24
C25 C25
C26 C26
C27 C27
CL28 CL28
HC4 HC4
HC51 1HC5
HC52 2HC5
HC6 HC6
HC71 1HC7
HC72 2HC7
HC73 3HC7
HC81 1HC8
HC82 2HC8
HC83 3HC8
HN9 HN9
H10 H10
H12 H12
H141 1H14
H142 2H14
H16 H16
H18 H18
H201 1H20
H202 2H20
H22 H22
H25 H25
H26 H26
HO1 HO1