Atom Nomenclature for BCH

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 BCH

Atom Name (V3) Atom Name (V2)
C21 C21
C20 C20
C19 C19
C18 C18
O12 O12
S17 S17
C16 C16
C15 C15
N14 N14
C13 C13
C22 C22
C11 C11
H211 1H21
H212 2H21
H213 3H21
H201 1H20
H202 2H20
H191 1H19
H192 2H19
H161 1H16
H162 2H16
H151 1H15
H152 2H15
H131 1H13
H132 2H13
H133 3H13
H221 1H22
H222 2H22
H223 3H22
H111 1H11
H112 2H11
H113 3H11