Atom Nomenclature for 3EL

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 3EL

Atom Name (V3) Atom Name (V2)
C21 C1
C22 C2
C23 C3
N6 N1
C24 C4
C25 C5
C20 C6
N5 N2
C15 C7
N3 N3
N4 N4
C14 C8
C13 C9
C12 C10
C7 C11
C8 C12
C9 C13
C10 C14
N2 N5
C11 C15
O1 O1
C3 C16
C4 C17
C5 C18
C1 C19
C19 C20
C18 C21
C17 C22
C16 C23
C2 C24
C6 C25
N1 N6
S1 S1
O2 O2
O3 O3
C26 C26
C27 C27
C28 C28
C29 C29
C30 C30
C31 C31
H1 H1
H2 H2
H3 H3
H4 H4
H5 H5
H6 H6
H7 H7
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
H28 H28
H29 H29
H30 H30
H31 H31