Atom Nomenclature for BIS

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 BIS

Atom Name (V3) Atom Name (V2)
PB PB
O2B O2B
O3B O3B
PA PA
O1A O1A
O2A O2A
O3A O3A
O5' O5*
C5' C5*
C4' C4*
O4' O4*
C3' C3*
O3' O3*
C2' C2*
O2' O2*
C1' C1*
N9 N9
C8 C8
N7 N7
C5 C5
C6 C6
N6 N6
N1 N1
C2 C2
N3 N3
C4 C4
C11 C11
F11 F11
F12 F12
C12 C12
C13 C13
C14 C14
C15 C15
F51 F51
F52 F52
PN PN
ON1 ON1
ON2 ON2
ON3 ON3
HO2B BHO2
HO1A AHO1
H5'1 1H5*
H5'2 2H5*
H4' H4*
H3' H3*
HO'3 3HO*
H2' H2*
HO'2 2HO*
H1' H1*
H8 H8
HN61 1HN6
HN62 2HN6
H2 H2
H121 1H12
H122 2H12
H131 1H13
H132 2H13
H141 1H14
H142 2H14
HO1 HO1
HO2 HO2