Atom Nomenclature for RPL

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 RPL

Atom Name (V3) Atom Name (V2)
O1P O1P
O2P O2P
O3P O3P
P P
O5' O5*
C5' C5*
C4' C4*
O4' O4*
C3' C3*
O3' O3*
C2' C2*
O2' O2*
C1' C1*
N1 N1
C2 C2
O2 O2
N3 N3
C4 C4
O4 O4
C5A C5A
C6A C6A
C7A C7A
C8A C8A
C9A C9A
OJA O91A
OKA O92A
NAA N10A
OAA O10A
CBA C11A
OBA O11A
HO2P HO2P
HO3P HO3P
H5'1 1H5*
H5'2 2H5*
H4 H4
H3 H3
HO3' HO3*
H2 H2
HO2' HO2*
HN1 HN1
H51 1H5
H52 2H5
H61 1H6
H62 2H6
H71 1H7
H72 2H7
H81 1H8
H91 H91
H10 H10
H111 1H11
H112 2H11
H11 H11