Atom Nomenclature for B22

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 B22

Atom Name (V3) Atom Name (V2)
S S
O1 O1
O2 O2
N1 N1
C1 C1
C2 C2
C3 C3
C4 C4
C5 C5
C6 C6
C7 C7
C8 C8
N9 N9
C10 C10
O10 O10
C11 C11
C12 C12
C13 C13
C14 C14
C15 C15
C16 C16
N17 N17
C18 C18
O18 O18
C19 C19
N20 N20
C21 C21
C22 C22
OXA OXA
OXB OXB
C23 C23
C24 C24
OXC OXC
OXD OXD
CU CU
HN12 2HN1
HN11 1HN1
H2 H2
H3 H3
H5 H5
H6 H6
H71 1H7
H72 2H7
H81 1H8
H82 2H8
HN9 HN9
H12 H12
H13 H13
H14 H14
H16 H16
HN17 HN17
H191 1H19
H192 2H19
H212 2H21
H211 1H21
H231 1H23
H232 2H23