Atom Nomenclature for SCT

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 SCT

Atom Name (V3) Atom Name (V2)
O16 O16
O18 O18
O9 O9
O7 O7
N8 N8
N5 N5
C1 C1
C10 C10
C14 C14
C17 C17
C13 C13
C12 C12
C11 C11
C15 C15
C6 C6
C4 C4
C2 C2
C3 C3
H16 H16
H18 H18
H1 H1
H10 H10
H141 1H14
H142 2H14
H13 H13
H121 1H12
H122 2H12
H151 1H15
H152 2H15
H2 H2
H3C1 1H3C
H3C2 2H3C
H3C3 3H3C
HN1 HN1