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Screening for Antiviral Inhibitors of the HIV Integrase–LEDGF/p75 Interaction Using the AlphaScreenTM Luminescent Proximity Assay
Yan Hou,
Debra E. McGuinness,
Andrew J. Prongay,
Boris Feld,
Paul Ingravallo,
Robert A. Ogert,
Charles A. Lunn,
and
John A. Howe*
Schering-Pough Research Institute
* To whom correspondence should be addressed. E-mail: john.howe{at}spcorp.com.
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Abstract |
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Small-molecule inhibitors of HIV integrase (HIV IN) have emerged as a promising new class of antivirals for the treatment of HIV/AIDS. The compounds currently approved or in clinical development specifically target HIV DNA integration and were identified using strand-transfer assays targeting the HIV IN/viral DNA complex. The authors have developed a second biochemical assay for identification of HIV integrase inhibitors, targeting the interaction between HIV IN and the cellular cofactor LEDGF/p75. They developed a luminescent proximity assay (AlphaScreenTM) designed to measure the association of the 80-amino-acid integrase binding domain of LEDGF/p75 with the 163-amino-acid catalytic core domain of HIV IN. This assay proved to be quite robust (with a Z'factor of 0.84 in screening libraries arrayed as orthogonal mixtures) and successfully identified several compounds specific for this protein-protein interaction. (Journal of Biomolecular Screening XXXX:xx-xx)
First published on May 14, 2008, doi:10.1177/1087057108317060
Journal of Biomolecular Screening 2008;13:406.
A more recent version of this article appeared on June 1, 2008

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