2hs2

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{{STRUCTURE_2hs2| PDB=2hs2 | SCENE= }}
{{STRUCTURE_2hs2| PDB=2hs2 | SCENE= }}
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'''Crystal structure of M46L mutant of HIV-1 protease complexed with TMC114 (darunavir)'''
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===Crystal structure of M46L mutant of HIV-1 protease complexed with TMC114 (darunavir)===
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==Overview==
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TMC114 (darunavir) is a promising clinical inhibitor of HIV-1 protease (PR) for treatment of drug resistant HIV/AIDS. We report the ultra-high 0.84 A resolution crystal structure of the TMC114 complex with PR containing the drug-resistant mutation V32I (PR(V32I)), and the 1.22 A resolution structure of a complex with PR(M46L). These structures show TMC114 bound at two distinct sites, one in the active-site cavity and the second on the surface of one of the flexible flaps in the PR dimer. Remarkably, TMC114 binds at these two sites simultaneously in two diastereomers related by inversion of the sulfonamide nitrogen. Moreover, the flap site is shaped to accommodate the diastereomer with the S-enantiomeric nitrogen rather than the one with the R-enantiomeric nitrogen. The existence of the second binding site and two diastereomers suggest a mechanism for the high effectiveness of TMC114 on drug-resistant HIV and the potential design of new inhibitors.
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(as it appears on PubMed at http://www.pubmed.gov), where 16962136 is the PubMed ID number.
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{{ABSTRACT_PUBMED_16962136}}
==About this Structure==
==About this Structure==
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[[Category: Weber, I T.]]
[[Category: Weber, I T.]]
[[Category: Aspartic protease active site surface binding site]]
[[Category: Aspartic protease active site surface binding site]]
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Revision as of 23:06, 27 July 2008

Image:2hs2.png

Template:STRUCTURE 2hs2

Crystal structure of M46L mutant of HIV-1 protease complexed with TMC114 (darunavir)

Template:ABSTRACT PUBMED 16962136

About this Structure

2HS2 is a Single protein structure of sequence from Human immunodeficiency virus 1. Full crystallographic information is available from OCA.

Reference

Ultra-high resolution crystal structure of HIV-1 protease mutant reveals two binding sites for clinical inhibitor TMC114., Kovalevsky AY, Liu F, Leshchenko S, Ghosh AK, Louis JM, Harrison RW, Weber IT, J Mol Biol. 2006 Oct 13;363(1):161-73. Epub 2006 Aug 4. PMID:16962136

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