Atom Nomenclature for SCM

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 SCM

Atom Name (V3) Atom Name (V2)
O1 O1
C2 C2
C2M C2M
C3 C3
C4 C4
O4 O4
C5 C5
O5 O5
C6 C6
O1B O1B
O2B O2B
C7 C7
C8 C8
N8 N8
C8M C8M
C9 C9
O9 O9
C10 C10
N10 N10
C1M C1M
C11 C11
O11 O11
C12 C12
H2 H2
H2M1 1H2M
H2M2 2H2M
H2M3 3H2M
H31 1H3
H32 2H3
HO5 HO5
H6 H6
H7 H7
H8 H8
HN8 HN8
H8M1 1H8M
H8M2 2H8M
H8M3 3H8M
H9 H9
HO9 HO9
H10 H10
HN1 HN1
H1M1 1H1M
H1M2 2H1M
H1M3 3H1M
H11 H11
HO1 HO1
H12 H12