Atom Nomenclature for 2KL

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 2KL

Atom Name (V3) Atom Name (V2)
O13 O13
C12 C12
N14 N14
C15 C15
C16 C16
C8 C8
S7 S7
C9 C9
C5 C5
C6 C6
N3 N3
C2 C2
N11 N11
N1 N1
C4 C4
C10 C10
C17 C17
C21 C21
CL1 CL1
C20 C20
C19 C19
CL2 CL2
C18 C18
O24 O24
C25 C25
C26 C26
N27 N27
C28 C28
C31 C31
C30 C30
C29 C29
H14 H14
H151 H151
H152 H152
H161 H161
H162 H162
H163 H163
H9 H9
H111 H111
H112 H112
H17 H17
H20 H20
H251 H251
H252 H252
H261 H261
H262 H262
H281 H281
H282 H282
H311 H311
H312 H312
H291 H291
H292 H292
H301 H301
H302 H302