Atom Nomenclature for CPB

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 CPB

Atom Name (V3) Atom Name (V2)
C1 C1
N1 N1
C16 C16
C15 C15
C14 C14
C13 C13
C12 C12
C8 C8
C9 C9
O1 O1
C2 C2
C3 C3
C4 C4
O4 O4
C10 C10
C5 C5
O5 O5
C6 C6
C7 C7
O7 O7
C21 C21
C22 C22
CL1 CL1
C23 C23
C24 C24
C25 C25
C26 C26
O3 O3
H11 1H1
H12 2H1
H13 3H1
H161 1H16
H162 2H16
H151 1H15
H152 2H15
H141 1H14
H131 1H13
H121 1H12
H122 2H12
H31 1H3
HO5 HO5
H61 1H6
HO7 HO7
H231 1H23
H241 1H24
H251 1H25
H261 1H26
HO3 HO3