Atom Nomenclature for 3KQ

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 3KQ

Atom Name (V3) Atom Name (V2)
C1 C1
C2 C2
C3 C3
C5 C4
C6 C5
O25 O1
C24 C6
N26 N1
C27 C7
C28 C8
C33 C9
C32 C10
C31 C11
C30 C12
C29 C13
C23 C14
O22 O2
C17 C15
C16 C16
O20 O3
C21 C17
C15 C18
O18 O4
C19 C19
C14 C20
C13 C21
C12 C22
C10 C23
O11 O5
C9 C24
CL7 CL1
N4 N2
CL8 CL2
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