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Table 5 IC 50 values (μM) of trifluorothymidine (TFT) and 5-fluorodeoxyuridine (5FdU) with purified recombinant human TK1 and TK2, Ureaplasma TK, and Mpn extracts *

From: Inhibition of Mycoplasma pneumoniae growth by FDA-approved anticancer and antiviral nucleoside and nucleobase analogs

  TFT 5FdU P value
Human TK1 9.7 ± 3.2 75.9 ± 2.6 <0.0001
Human TK2 80 ± 5.6 158.5 ± 2.7 <0.0001
Ureaplasma TK 12.0 ± 4.2 1000 ± 13.3 <0.0001
Mpn extracts 9.1 ± 2.9 47.9 ±1.2 <0.0001
  1. *Assays were performed with 10 μM tritium labelled thymidine as substrate in the presence of various concentrations of the inhibitors. Data were mean ± SD from at least three independent determinations. P value < 0.05 is considered as significant.