Atom Nomenclature for TL4

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 TL4

Atom Name (V3) Atom Name (V2)
C4 C4
C5 C5
C6 C6
C7 C7
O8 O8
C9 C9
C10 C10
O11 O11
C12 C12
C13 C13
O14 O14
C15 C15
C16 C16
C17 C17
C18 C18
C19 C19
C20 C20
N21 N21
N22 N22
C23 C23
C24 C24
O25 O25
C26 C26
C27 C27
C28 C28
N1 N1
C2 C2
N3 N3
H5 H5
H6 H6
H9 H9
H101 1H10
H102 2H10
H12 H12
H13 H13
H16 H16
H17 H17
H18 H18
H21 H21
H221 1H22
H222 2H22
H23 H23
H241 1H24
H242 2H24
H26 H26
H27 H27
H28 H28
HN1 HN1
HN31 1HN3
HN32 2HN3