Atom Nomenclature for IIB

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 IIB

Atom Name (V3) Atom Name (V2)
C1 C1
C2 C2
C3 C3
C4 C4
C5 C5
C6 C6
N7 N7
C8 C8
C9 C9
C10 C10
N11 N11
C12 C12
C13 C13
C14 C14
N15 N15
C16 C16
C17 C17
C27 C27
C28 C28
C32 C32
C37 C37
C38 C38
N41 N41
O42 O42
C43 C43
C44 C44
C45 C45
S46 S46
C47 C47
C48 C48
C49 C49
CL50 CL50
O56 O56
C7 C7
N1 N1
C11 C11
H1 H1
H5 H5
H6 H6
H11 H11
H12 H12
H131 1H13
H132 2H13
H141 1H14
H142 2H14
H161 1H16
H162 2H16
H171 1H17
H172 2H17
H27 H27
H281 1H28
H282 2H28
H283 3H28
H321 1H32
H322 2H32
H323 3H32
H371 1H37
H372 2H37
H44 H44
H48 H48
H49 H49
H111 1H11
H112 2H11
H113 3H11