Atom Nomenclature for TTM

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 TTM

Atom Name (V3) Atom Name (V2)
P P
OP1 O1P
OP2 O2P
O5' O5*
C5' C5*
C4' C4*
O4' O4*
C1' C1*
N1 N1
C6 C6
C2 C2
O2 O2
N3 N3
C1Q C1Q
C2Q C2Q
C4 C4
O4 O4
C5 C5
C5M C5M
C2' C2*
C3' C3*
O3' O3*
OP3 O3P
HOP2 2HOP
H5' 1H5*
H5'' 2H5*
H4' H4*
H1' H1*
H6 H6
H1Q H1Q
H2Q H2Q
H2 H2
H3Q H3Q
H4Q H4Q
H71 1H5M
H72 2H5M
H73 3H5M
H2' 1H2*
H2'' 2H2*
H3' H3*
HO3' H3T
HOP3 3HOP