Atom Nomenclature for 2BA

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 2BA

Atom Name (V3) Atom Name (V2)
P P
O1P O1P
O2P O2P
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
P1 1P
O1P1 1O1P
O2P1 1O2P
O5'1 1O5*
C5'1 1C5*
C4'1 1C4*
O4'1 1O4*
C3'1 1C3*
O3'1 1O3*
C2'1 1C2*
O2'1 1O2*
C1'1 1C1*
N91 1N9
C81 1C8
N71 1N7
C51 1C5
C61 1C6
N61 1N6
N11 1N1
C21 1C2
N31 1N3
C41 1C4
H5' H5*
H5'A H5*A
H4' H4*
H3' H3*
H2' H2*
HO2' HO2*
H1' H1*
H8 H8
HN6 HN6
HN6A HN6A
H2 H2
HC5' HC5*
HC5A HC5A
HC4' HC4*
HC3' HC3*
HC2' HC2*
HO2A HO2A
HC1' HC1*
HC8 HC8
H1N6 H1N6
H1NA H1NA
HC2 HC2
H2P H2P
H2OP H2OP