Atom Nomenclature for BTN

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 BTN

Atom Name (V3) Atom Name (V2)
C11 C11
O11 O11
O12 O12
C10 C10
C9 C9
C8 C8
C7 C7
C2 C2
S1 S1
C6 C6
C5 C5
N1 N1
C3 C3
O3 O3
N2 N2
C4 C4
HO2 HO2
H101 H101
H102 H102
H91 H91
H92 H92
H81 H81
H82 H82
H71 H71
H72 H72
H2 H2
H61 H61
H62 H62
H5 H5
HN1 HN1
HN2 HN2
H4 H4