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2000:
Takahashi H; Iwata T; Kitagawa Y; Shoya Y; Takahashi R H; Nagashima K; Kurata T
Monoclonal antibodies against topoisomerase I suppressed DNA relaxation and HIV-1 cDNA synthesis.
Hybridoma 2000;
19(
4):.
Human immunodeficiency virus type 1 (HIV-1) virion is known to carry a number of cellular components including cellular topoisomerase I. Previously, we have demonstrated that topoisomerase I enhances HIV-1 cDNA synthesis in reverse transcription (RT) assays in vitro. In the present study, we have produced six monoclonal antibodies (MAbs) against human topoisomerase I. The MAbs suppressed nicking/closing of supercoiled DNA and cDNA synthesis in an endogenous reverse transcription (ERT) assay using a detergent-disrupted HIV-1 virion. Thus, the results suggest that topoisomerase I plays an important role in RNA-directed DNA polymerization.
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