Atom Nomenclature for C48

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 C48

Atom Name (V3) Atom Name (V2)
O1 O1
O2 O2
O3 O3
O4 O4
N5 N5
N6 N6
N7 N7
N8 N8
C9 C9
C10 C10
C11 C11
C12 C12
C13 C13
C14 C14
C15 C15
C16 C16
C17 C17
C18 C18
C19 C19
C20 C20
C21 C21
C22 C22
C23 C23
C24 C24
C25 C25
C26 C26
C27 C27
C28 C28
C29 C29
C30 C30
HN5 HN5
HN7 HN7
H101 1H10
H102 2H10
H13 H13
H141 1H14
H142 2H14
H16 H16
H17 H17
H18 H18
H19 H19
H20 H20
H221 1H22
H222 2H22
H223 3H22
H231 1H23
H232 2H23
H233 3H23
H241 1H24
H242 2H24
H251 1H25
H252 2H25
H27 H27
H28 H28
H29 H29
H30 H30