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| | <StructureSection load='6mk9' size='340' side='right'caption='[[6mk9]], [[Resolution|resolution]] 1.70Å' scene=''> | | <StructureSection load='6mk9' size='340' side='right'caption='[[6mk9]], [[Resolution|resolution]] 1.70Å' scene=''> |
| | == Structural highlights == | | == Structural highlights == |
| - | <table><tr><td colspan='2'>[[6mk9]] is a 2 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6MK9 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=6MK9 FirstGlance]. <br> | + | <table><tr><td colspan='2'>[[6mk9]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Human_immunodeficiency_virus_1 Human immunodeficiency virus 1]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6MK9 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=6MK9 FirstGlance]. <br> |
| - | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=7O7:(3S,3aR,5R,7aS,8S)-hexahydro-4H-3,5-methanofuro[2,3-b]pyran-8-yl+{(2S,3R)-4-[{[2-(cyclopropylamino)-1,3-benzothiazol-6-yl]sulfonyl}(2-methylpropyl)amino]-3-hydroxy-1-phenylbutan-2-yl}carbamate'>7O7</scene></td></tr> | + | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.7Å</td></tr> |
| - | <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[5tyr|5tyr]], [[4hla|4hla]]</td></tr>
| + | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=7O7:(3S,3aR,5R,7aS,8S)-hexahydro-4H-3,5-methanofuro[2,3-b]pyran-8-yl+{(2S,3R)-4-[{[2-(cyclopropylamino)-1,3-benzothiazol-6-yl]sulfonyl}(2-methylpropyl)amino]-3-hydroxy-1-phenylbutan-2-yl}carbamate'>7O7</scene></td></tr> |
| - | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=6mk9 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6mk9 OCA], [http://pdbe.org/6mk9 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=6mk9 RCSB], [http://www.ebi.ac.uk/pdbsum/6mk9 PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=6mk9 ProSAT]</span></td></tr> | + | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=6mk9 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6mk9 OCA], [https://pdbe.org/6mk9 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=6mk9 RCSB], [https://www.ebi.ac.uk/pdbsum/6mk9 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=6mk9 ProSAT]</span></td></tr> |
| | </table> | | </table> |
| - | <div style="background-color:#fffaf0;">
| + | == Function == |
| - | == Publication Abstract from PubMed == | + | [https://www.uniprot.org/uniprot/A0A4P8EW36_HV1 A0A4P8EW36_HV1] |
| - | We attempted to select HIV-1 variants resistant to darunavir (DRV), which potently inhibits the enzymatic activity and dimerization of protease and has a high genetic barrier to HIV-1 development of resistance to DRV. We conducted selection using a mixture of 8 highly multi-protease inhibitor (PI)-resistant, DRV-susceptible clinical HIV-1 variants (HIV-1(MIX)) containing 9 to 14 PI resistance-associated amino acid substitutions in protease. HIV-1(MIX) became highly resistant to DRV, with a 50% effective concentration (EC(50)) approximately 333-fold greater than that against HIV-1(NL4-3). HIV-1(MIX) at passage 51 (HIV-1(MIX(P51))) replicated well in the presence of 5 muM DRV and contained 14 mutations. HIV-1(MIX(P51)) was highly resistant to amprenavir, indinavir, nelfinavir, ritonavir, lopinavir, and atazanavir and moderately resistant to saquinavir and tipranavir. HIV-1(MIX(P51)) had a resemblance with HIV-1(C) of the HIV-1(MIX) population, and selection using HIV-1(C) was also performed; however, its DRV resistance acquisition was substantially delayed. The H219Q and I223V substitutions in Gag, lacking in HIV-1(C(P51)), likely contributed to conferring a replication advantage on HIV-1(MIX(P51)) by reducing intravirion cyclophilin A content. HIV-1(MIX(P51)) apparently acquired the substitutions from another HIV-1 strain(s) of HIV-1(MIX) through possible homologous recombination. The present data suggest that the use of multiple drug-resistant HIV-1 isolates is of utility in selecting drug-resistant variants and that DRV would not easily permit HIV-1 to develop significant resistance; however, HIV-1 can develop high levels of DRV resistance when a variety of PI-resistant HIV-1 strains are generated, as seen in patients experiencing sequential PI failure, and ensuing homologous recombination takes place. HIV-1(MIX(P51)) should be useful in elucidating the mechanisms of HIV-1 resistance to DRV and related agents.
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| - | In vitro selection of highly darunavir-resistant and replication-competent HIV-1 variants by using a mixture of clinical HIV-1 isolates resistant to multiple conventional protease inhibitors.,Koh Y, Amano M, Towata T, Danish M, Leshchenko-Yashchuk S, Das D, Nakayama M, Tojo Y, Ghosh AK, Mitsuya H J Virol. 2010 Nov;84(22):11961-9. doi: 10.1128/JVI.00967-10. Epub 2010 Sep 1. PMID:20810732<ref>PMID:20810732</ref>
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| - | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br>
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| - | </div>
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| - | <div class="pdbe-citations 6mk9" style="background-color:#fffaf0;"></div>
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| - | == References ==
| + | |
| - | <references/>
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| | __TOC__ | | __TOC__ |
| | </StructureSection> | | </StructureSection> |
| | + | [[Category: Human immunodeficiency virus 1]] |
| | [[Category: Large Structures]] | | [[Category: Large Structures]] |
| - | [[Category: Das, D]] | + | [[Category: Das D]] |
| - | [[Category: Hayashi, H]] | + | [[Category: Hayashi H]] |
| - | [[Category: Mitsuya, H]] | + | [[Category: Mitsuya H]] |
| - | [[Category: Yedidi, R S]] | + | [[Category: Yedidi RS]] |
| - | [[Category: Darunavir-resistance]]
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| - | [[Category: Grl-121]]
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| - | [[Category: Hydrolase]]
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| - | [[Category: Hydrolase-hydrolase inhibitor complex]]
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| - | [[Category: Non-peptidic]]
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| - | [[Category: P51]]
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| - | [[Category: Protease-inhibitor complex]]
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