Atom Nomenclature for 277

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 277

Atom Name (V3) Atom Name (V2)
C1 C1
C2 C2
C3 C3
C4 C4
C5 C5
C6 C6
C15 C15
C17 C17
C18 C18
N19 N19
N20 N20
C22 C22
C23 C23
C27 C27
O31 O31
O32 O32
N33 N33
C35 C35
C42 C42
C43 C43
C44 C44
C45 C45
F52 F52
H11 1H1
H12 2H1
H21 1H2
H22 2H2
H3 H3
H41 1H4
H42 2H4
H51 1H5
H52 2H5
H6 H6
H15 H15
H17 H17
H231 1H23
H232 2H23
H233 3H23
H271 1H27
H272 2H27
H273 3H27
H331 1H33
H332 2H33
H351 1H35
H352 2H35
H353 3H35
H421 1H42
H422 2H42
H43 H43
H441 1H44
H442 2H44
H451 1H45
H452 2H45