Atom Nomenclature for SSR

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 SSR

Atom Name (V3) Atom Name (V2)
C1 C1
C2 C2
C3 C3
C4 C4
C5 C5
C6 C6
N9 N9
C10 C10
C11 C11
C12 C12
O16 O16
C17 C17
N18 N18
C19 C19
C20 C20
N21 N21
C22 C22
C23 C23
O32 O32
C35 C35
C36 C36
C37 C37
C38 C38
C39 C39
C40 C40
C46 C46
C47 C47
C50 C50
C51 C51
C52 C52
C53 C53
C54 C54
C58 C58
F62 F62
H1 H1
H2 H2
H12 H12
H12A H12A
H12B H12B
HO16 HO16
H19 H19
H19A H19A
H20 H20
H20A H20A
HN21 HN21
H22 H22
H22A H22A
H23 H23
H23A H23A
H36 H36
H37 H37
H38 H38
H39 H39
H40 H40
H46 H46
H46A H46A
H52 H52
H53 H53
H54 H54
H58 H58
H58A H58A
H58B H58B