Atom Nomenclature for ELK

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 ELK

Atom Name (V3) Atom Name (V2)
C10 C1
N12 N1
C13 C2
C15 C3
C17 C4
C22 C5
C24 C6
C26 C7
C28 C8
C01 C9
O02 O1
C03 C10
C04 C11
C05 C12
C06 C13
C07 C14
C08 C15
N09 N2
O11 O2
C14 C16
N16 N3
C18 C17
C19 C18
O20 O3
N21 N4
C23 C19
O25 O4
C27 C20
C29 C21
C30 C22
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