Atom Nomenclature for CMB

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 CMB

Atom Name (V3) Atom Name (V2)
C1 C1
C2 C2
C3 C3
C4 C4
C5 C5
C6 C6
N7 N7
C8 C8
C9 C9
C10 C10
C11 C11
N12 N12
C13 C13
C14 C14
C17 C17
C18 C18
C21 C21
C22 C22
C23 C23
C24 C24
C25 C25
C26 C26
C27 C27
C28 C28
C29 C29
C30 C30
C31 C31
N32 N32
CL1 CL1
CL2 CL2
O45 O45
N53 N53
HC1 HC1
HC6 HC6
HC9 HC9
H101 H101
H102 H102
H103 H103
H12 H12
H131 H131
H132 H132
H171 H171
H172 H172
H21 H21
H22 H22
H23 H23
H251 H251
H26 H26
H28 H28
H30 H30
H32 H32
H531 H531
H532 H532
HC2 HC2