Atom Nomenclature for CK9

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 CK9

Atom Name (V3) Atom Name (V2)
O27 O27
C24 C24
C23 C23
C22 C22
C21 C21
C20 C20
C19 C19
C18 C18
N17 N17
C4 C4
C5 C5
N9 N9
C8 C8
C6 C6
N7 N7
C10 C10
C12 C12
C11 C11
N3 N3
C2 C2
N1 N1
N13 N13
C14 C14
C25 C25
C26 C26
C15 C15
O16 O16
H27 H27
H23 H23
H22 H22
H21 H21
H20 H20
H181 1H18
H182 2H18
H17 H17
H8 H8
H10 H10
H121 1H12
H122 2H12
H123 3H12
H111 1H11
H112 2H11
H113 3H11
H13 H13
H14 H14
H251 1H25
H252 2H25
H261 1H26
H262 2H26
H263 3H26
H151 1H15
H152 2H15
H16 H16