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    Nat Med. 2005 Dec;11(12):1287-9. Epub 2005 Nov 27.

    A role for LEDGF/p75 in targeting HIV DNA integration.

    Source

    University of Pennsylvania School of Medicine, Department of Microbiology, 3610 Hamilton Walk, Philadelphia, Pennsylvania 19104-6076, USA.

    Abstract

    HIV DNA integration is favored in active genes, but the underlying mechanism is unclear. Cellular lens epithelium-derived growth factor (LEDGF/p75) binds both chromosomal DNA and HIV integrase, and might therefore direct integration by a tethering interaction. We analyzed HIV integration in cells depleted for LEDGF/p75, and found that integration was (i) less frequent in transcription units, (ii) less frequent in genes regulated by LEDGF/p75 and (iii) more frequent in GC-rich DNA. LEDGF is thus the first example of a cellular protein controlling the location of HIV integration in human cells.

    PMID:
    16311605
    [PubMed - indexed for MEDLINE]

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