Atom Nomenclature for Y27

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 Y27

Atom Name (V3) Atom Name (V2)
O23 O23
C22 C22
C31 C31
C36 C36
C35 C35
C34 C34
C33 C33
C32 C32
C41 C41
C42 C42
N43 N43
N21 N21
C14 C14
C15 C15
C16 C16
N11 N11
C12 C12
C13 C13
H31 H31
H361 1H36
H362 2H36
H351 1H35
H352 2H35
H34 H34
H331 1H33
H332 2H33
H321 1H32
H322 2H32
H41 H41
H421 1H42
H422 2H42
H423 3H42
H431 1H43
H432 2H43
H21 H21
H15 H15
H16 H16
H12 H12
H13 H13