Atom Nomenclature for C3M

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 C3M

Atom Name (V3) Atom Name (V2)
N1 N1
C2 C2
C3 C3
C4 C4
C5 C5
C6 C6
C7 C7
C8 C8
C9 C9
C10 C10
O11 O11
C12 C12
N13 N13
S14 S14
O15 O15
O16 O16
C17 C17
C18 C18
C19 C19
C20 C20
C21 C21
C22 C22
C23 C23
C24 C24
C25 C25
C26 C26
H1N1 1H1N
H1N2 2H1N
H2 H2
H3C1 1H3C
H3C2 2H3C
H5 H5
H6 H6
H7 H7
H8 H8
H9 H9
H10 H10
H11 H11
H121 1H12
H122 2H12
H13 H13
H18 H18
H19 H19
H21 H21
H22 H22
H23 H23
H24 H24
H26 H26