Atom Nomenclature for HT

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 HT

Atom Name (V3) Atom Name (V2)
O1 O1
C1 C1
C4 C4
C2 C2
C3 C3
C6 C6
C5 C5
C7 C7
N1 N1
C8 C8
C9 C9
N2 N2
C10 C10
C11 C11
C12 C12
C13 C13
C14 C14
N3 N3
C15 C15
C16 C16
N4 N4
C17 C17
C18 C18
C19 C19
C20 C20
N5 N5
C21 C21
C22 C22
N6 N6
C23 C23
C24 C24
C25 C25
HO1 HO1
H2 H2
H3 H3
H5 H5
H6 H6
HN1 HN1
H10 H10
H11 H11
H13 H13
HN3 HN3
H17 H17
H18 H18
H20 H20
H211 H211
H212 H212
H221 H221
H222 H222
H231 H231
H232 H232
H241 H241
H242 H242
H253 H253
H252 H252
H251 H251