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A Phenylnorstatine Inhibitor Binding to HIV-1 Protease: Geometry, Protonation and Subsite-Pocket Interactions Analyzed at Atomic Resolution
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SYSNO ASEP 0191691 Document Type K - Proceedings Paper (Czech conf.) R&D Document Type Conference Paper Title A Phenylnorstatine Inhibitor Binding to HIV-1 Protease: Geometry, Protonation and Subsite-Pocket Interactions Analyzed at Atomic Resolution Author(s) Brynda, Jiří (UMG-J) RID
Řezáčová, Pavlína (UMG-J) RID
Fábry, Milan (UMG-J) RID
Hořejší, Magdalena (UMG-J)
Štouračová, Renata (UMG-J)
Sedláček, Juraj (UMG-J) RID
Souček, M. (CZ)
Hradílek, M. (CZ)
Lepšík, M. (CZ)
Konvalinka, J. (CZ)Issue data 2003 Source Title Materials Structure in Chemistry, Biology, Physics and Technology. - : Czech and Slovak Crystallographic Association - ISSN 1211-5894
s. 62Number of pages 1 s. Action Meeting of the Czech and Slovak structural biologists /3./ Event date 11.03.2004-13.03.2004 VEvent location Nové hrady Country CZ - Czech Republic Event type EUR Language eng - English Country CZ - Czech Republic Keywords inhibitor ; HIV protease ; atomic resolution Subject RIV CE - Biochemistry R&D Projects OE67/1 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) CEZ AV0Z5052915 - UMG-J Annotation The x-ray structure of a complex of HIV-1 protease (PR) with a phenylnorstatine inhibitor Z-Pns-Phe-Glu-Glu-NH2 has been determined at 1.03 A, the highest resolution so far reported for any HIV PR complex. The inhibiot shows subnanomolar Ki values for both the wild-type PR and the variant representing one of the most common mutations linked to resistance developoment. The structure displays a unique pattern of hydrogen bonding to the two catalytic aspartate residues. The high resolution permits to assess the donor/acceptor realtions of this hydrogen bonding and to indicate a proton shared by the two catalytic residues. Structural mechanism for the unimpaired ihnibition of the protease Val82Ala mutant is also suggested, based on energy calculations and analyses. Workplace Institute of Molecular Genetics Contact Nikol Škňouřilová, nikol.sknourilova@img.cas.cz, Tel.: 241 063 217 Year of Publishing 2004
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