Atom Nomenclature for RER

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 RER

Atom Name (V3) Atom Name (V2)
C1 C1
C2 C2
C3 C3
N3 N3
C3A C3A
C4 C4
O4 O4
C5 C5
O5 O5
C5A C5A
O1 O1
H1 H1
H21C H21C
H22C H22C
HO1 HO1
H31N H31N
H32N H32N
H3A1 H3A1
H3A2 H3A2
H3A3 H3A3
H4 H4
HO4 HO4
H5 H5
H5A1 H5A1
H5A2 H5A2
H5A3 H5A3