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. Author manuscript; available in PMC: 2014 Jul 1.
Published in final edited form as: Nucl Med Biol. 2013 Mar 27;40(5):638–642. doi: 10.1016/j.nucmedbio.2013.01.005

FIGURE 1.

FIGURE 1

Amino acid sequences of the catalytic domain of the thymidine kinase of various microorganisms based on data extracted from the gene bank and analyzed using BLAST. The last column on the right shows the degree of match between the reference sequence (E. coli W3110) and the different bacterial species. Notice that there is only 15% match between the humanTK1 AA sequence and that of the reference microorganism.