发明名称 |
Spectroscopic helicase assay |
摘要 |
The invention provides spectroscopic methods for detecting helicase activity and inhibitors of helicase activity. Samples are assayed for helicase activity by: (a) incubating a mixture of the sample, double-stranded nucleic acid and a suitable luminescent marker which lumineses selectively in the presence of double-stranded nucleic acid; (b) exposing the mixture to light capable of inducing luminescence from the marker; and (c) detecting the intensity of luminescence from the mixture. Alternatively, samples are assayed for helicase inhibitors by further including in the mixture a helicase and incubating the mixture under conditions whereby, but for the presence of an inhibitor of the helicase in the sample, the helicase would be capable of converting a portion of the double-stranded nucleic acid into single-stranded nucleic acid. In both assays, helicase activity is inversely proportional to the detected luminescense. The methods are particularly suited to high-throughput drug screening.
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申请公布号 |
US5747247(A) |
申请公布日期 |
1998.05.05 |
申请号 |
US19940280020 |
申请日期 |
1994.07.25 |
申请人 |
THE REGENTS OF THE UNIVERSITY OF CALIFORNIA |
发明人 |
KOWALCZYKOWSKI, STEPHEN C.;EGGLESTON, ANGELA K. |
分类号 |
C12Q1/68;(IPC1-7):C12Q1/68;C12P19/34 |
主分类号 |
C12Q1/68 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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