Atom Nomenclature for IP7

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 IP7

Atom Name (V3) Atom Name (V2)
N1 N1
C2 C2
N3 N3
C4 C4
C5 C5
C6 C6
C7 C7
N8 N8
C9 C9
C10 C10
C11 C11
C12 C12
C13 C13
C14 C14
C15 C15
O16 O16
C17 C17
C18 C18
C19 C19
C20 C20
C21 C21
C22 C22
N23 N23
C24 C24
C25 C25
C26 C26
C27 C27
C28 C28
C29 C29
N30 N30
C31 C31
C32 C32
HN11 1HN1
HN12 2HN1
H4 H4
H5 H5
H6 H6
HN8 HN8
H91 1H9
H92 2H9
H11 H11
H13 H13
H14 H14
H171 1H17
H172 2H17
H19 H19
H20 H20
H21 H21
H22 H22
H25 H25
H26 H26
H28 H28
H29 H29
HN30 HN30
H32 H32