Atom Nomenclature for CSC

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 CSC

Atom Name (V3) Atom Name (V2)
S1 S1
C2 C2
C3 C3
C3' C3'
C4 C4
C4' C4'
O4A O4A
O4B O4B
N5 N5
C6 C6
C7 C7
C8 C8
O9 O9
N10 N10
C11 C11
O12 O12
C13 C13
C14 C14
C15 C15
C16 C16
N17 N17
C18 C18
O19 O19
O20 O20
O1 O1
C1 C1
O2 O2
C20 C20
H11 1H1
H12 2H1
H3'1 1H3'
H3'2 2H3'
H4A H4A
H6 H6
H7 H7
H10 H10
H131 1H13
H132 2H13
H141 1H14
H142 2H14
H151 1H15
H152 2H15
H16 H16
H171 1H17
H172 2H17
H173 3H17
H20 H20
H201 1H20
H202 2H20
H203 3H20