Atom Nomenclature for UR3

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 UR3

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
C3U C3U
C4 C4
O4 O4
C5 C5
C2' C2'
O2' O2'
C3' C3'
O3' O3'
OP3 O3P
HOP2 HOP2
H5' H5'1
H5'' H5'2
H4' H4'
H1' H1'
H6 H6
H3U1 H3U1
H3U2 H3U2
H3U3 H3U3
H5 H5
H2' H2'
HO2' HO'2
H3' H3'
HO3' H3T
HOP3 HOP3