Atom Nomenclature for ECN

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 ECN

Atom Name (V3) Atom Name (V2)
C1 C1
C2 C2
CL4 CL4
C6 C6
C7 C7
C9 C9
C10 C10
C11 C11
CL2 CL2
C14 C14
C15 C15
C16 C16
C17 C17
CL8 CL8
N19 N19
C19 C19
C20 C20
O20 O20
C5 C5
N1 N1
C3 C3
C8 C8
C13 C13
C21 C21
H2 H2
H10 H10
H8C1 H8C1
H8C2 H8C2
H13 H13
H6 H6
H7 H7
H9 H9
H15 H15
H17 H17
H21 H21
H3 H3
H191 H191
H192 H192
H20 H20