Atom Nomenclature for MTH

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 MTH

Atom Name (V3) Atom Name (V2)
CS CS
S5' S5*
C5' C5*
C4' C4*
O4' O4*
C2' C2*
O2' O2*
C3' C3*
O3' O3*
C1' C1*
N9 N9
C8 C8
C7 C7
C5 C5
C6 C6
N6 N6
N1 N1
C2 C2
N3 N3
C4 C4
HCS1 1HCS
HCS2 2HCS
HCS3 3HCS
H5'1 1H5*
H5'2 2H5*
H4'1 1H4*
H2'1 1H2*
HO21 1HO2
H3'1 1H3*
HO31 1HO3
H1'1 1H1*
HC81 1HC8
HC71 1HC7
HN61 1HN6
HN62 2HN6
HC21 1HC2