Atom Nomenclature for CKD

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 CKD

Atom Name (V3) Atom Name (V2)
C2 C1
C3 C2
C5 C3
C7 C4
C9 C5
C10 C6
C11 C7
C12 C8
C13 C9
C15 C10
C18 C11
C20 C12
C21 C13
C22 C14
F2 F1
C30 C15
C29 C16
C28 C17
C31 C18
C32 C19
C27 C20
C26 C21
C25 C22
C24 C23
F1 F2
C23 C24
C19 C25
O2 O1
N2 N1
C14 C26
C16 C27
C17 C28
F F3
C1 C29
N N2
N1 N3
C C30
S S1
O O2
O1 O3
C8 C31
C6 C32
C4 C33
H1 H1
H2 H2
H3 H3
H4 H4
H5 H5
H6 H6
H7 H7
H8 H8
H9 H9
H10 H10
H11 H11
H12 H12
H13 H13
H14 H14
H15 H15
H16 H16
H17 H17
H18 H18
H19 H19
H20 H20
H21 H21
H22 H22
H23 H23
H24 H24
H25 H25
H26 H26
H27 H27
H29 H29
H30 H30
H31 H31
H32 H32
H33 H33