Atom Nomenclature for TIF

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 TIF

Atom Name (V3) Atom Name (V2)
C7 C7
S8 S8
C4 C4
C5 C5
C6 C6
C1 C1
C2 C2
C3 C3
O22 O22
O23 O23
N9 N9
C10 C10
C18 C18
C19 C19
C20 C20
C21 C21
C11 C11
O17 O17
N12 N12
C13 C13
C24 C24
O33 O33
C14 C14
C15 C15
C16 C16
N25 N25
C26 C26
C27 C27
C32 C32
C31 C31
C30 C30
C34 C34
N35 N35
N36 N36
C29 C29
C28 C28
H7 H7
H7A H7A
H5 H5
H6 H6
H1 H1
H2 H2
H3 H3
HN9 HN9
H10 H10
H18 H18
H18A H18A
H19 H19
H20 H20
H20A H20A
H20B H20B
H21 H21
H21A H21A
H21B H21B
H13 H13
H14 H14
H14A H14A
H15 H15
H15A H15A
H16 H16
H16A H16A
HN25 HN25
H26 H26
H26A H26A
H32 H32
H31 H31
HN35 HN35
HN36 HN36
HN3A HN3A
H29 H29
H28 H28