Screening method for a ribonuclease H inhibitor of a reverse...

Chemistry: molecular biology and microbiology – Measuring or testing process involving enzymes or... – Involving nucleic acid

Reexamination Certificate

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Reexamination Certificate

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07572579

ABSTRACT:
A screening method for a compound which inhibits a ribonuclease H activity of a reverse transcriptase which includes incubating a substrate with an appropriate primer hybridized to an appropriate template, a metal ion and a reverse transcriptase to form a complex, adding a test substance, and after these steps adding dNTPs to initiate DNA synthesis, measuring the amount of nucleic acid cleaved from the template, and comparing the measured value with a measured value in the absence of a test substance.

REFERENCES:
patent: WO-03/103610 (2003-12-01), None
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Parniak et al., “A fluorescence-based high-throughoutput screening assay for Inhibitors of human immunodeficiency virus- reverse transcriptase-assocaited ribonuclease H activity”, Analytical Biochemistry., vol. 322, No. 1, pp. 33-39 (2003).
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Fan et al., Simultaneous mutations at Tyr-181 and Tyr-188 in HIV-1 reverse transcriptase prevents inhibition of RNA-dependent DNA polymerase activity by the bisheterorarylpiperazine (BHAP) U-90152s, Federation of European Biochemical Societies, vol. 370, Nos. 1 & 2, pp. 59-62 (1995).

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