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. 1992 Apr 15;89(8):3458-62.
doi: 10.1073/pnas.89.8.3458.

Integration of human immunodeficiency virus DNA: adduct interference analysis of required DNA sites

F D Bushman  1 , R Craigie
Affiliations

Integration of human immunodeficiency virus DNA: adduct interference analysis of required DNA sites

F D Bushman et al. Proc Natl Acad Sci U S A. .

Abstract

The integration (IN) protein encoded by human immunodeficiency virus directs the integration of viral DNA into host DNA. We have probed the DNA sites required for the function of IN protein by attaching adducts to model DNA substrates and assaying their effects on integration in vitro. These experiments reveal that modifications in a short region on both DNA strands at the ends of the viral DNA block IN protein function. Modification of the target DNA near the point of DNA strand transfer also blocks IN protein function. Further experiments suggest that distinct subsets of the identified interactions are important for separate steps in the integration process.

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