Atom Nomenclature for O4D

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 O4D

Atom Name (V3) Atom Name (V2)
C1 C1
C3 C2
C12 C3
C13 C4
C14 C5
C15 C6
C16 C7
C17 C8
C21 C9
C22 C10
C23 C11
C24 C12
C25 C13
C26 C14
C27 C15
C28 C16
C29 C17
C10 C18
C5 C19
C8 C20
C9 C21
N11 N1
N2 N2
N20 N3
N4 N4
N6 N5
N7 N6
O18 O1
O19 O2
H32 H1
H33 H2
H34 H3
H35 H4
H36 H5
H39 H6
H40 H7
H38 H8
H41 H9
H42 H10
H43 H11
H44 H12
H46 H13
H45 H14
H48 H15
H47 H16
H50 H17
H49 H18
H51 H19
H52 H20
H54 H21
H53 H22
H55 H23
H57 H24
H56 H25
H30 H26
H31 H27
H37 H29