Atom Nomenclature for 274

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 274

Atom Name (V3) Atom Name (V2)
C22 C22
O4 O4
C19 C19
C18 C18
C21 C21
C20 C20
C23 C23
N3 N3
C17 C17
C16 C16
C14 C14
C12 C12
C9 C9
C15 C15
O3 O3
N2 N2
C13 C13
C11 C11
C10 C10
C8 C8
S1 S1
O1 O1
O2 O2
N1 N1
C7 C7
C3 C3
C1 C1
C2 C2
CL1 CL1
C4 C4
C5 C5
C6 C6
C24 C24
C27 C27
N5 N5
C28 C28
C26 C26
C25 C25
N4 N4
H211 1H21
H212 2H21
H213 3H21
H231 1H23
H232 2H23
H233 3H23
H3 H3
H16 H16
H9 H9
H2 H2
H11 H11
H10 H10
H7C1 1H7C
H7C2 2H7C
H7C3 3H7C
H1 H1
H6 H6
H4 H4
H5 H5
H241 1H24
H242 2H24
H271 1H27
H272 2H27
H281 1H28
H282 2H28
H283 3H28
H261 1H26
H262 2H26
H251 1H25
H252 2H25