1fiv

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(New page: 200px<br /><applet load="1fiv" size="450" color="white" frame="true" align="right" spinBox="true" caption="1fiv, resolution 2.0&Aring;" /> '''STRUCTURE OF AN INHIB...)
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[[Image:1fiv.gif|left|200px]]<br /><applet load="1fiv" size="450" color="white" frame="true" align="right" spinBox="true"
 
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caption="1fiv, resolution 2.0&Aring;" />
 
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'''STRUCTURE OF AN INHIBITOR COMPLEX OF PROTEINASE FROM FELINE IMMUNODEFICIENCY VIRUS'''<br />
 
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==Overview==
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==STRUCTURE OF AN INHIBITOR COMPLEX OF PROTEINASE FROM FELINE IMMUNODEFICIENCY VIRUS==
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The crystal structure of a recombinant form of the proteinase encoded by, the feline immunodeficiency virus (FIV PR) has been solved at 2 A, resolution and refined to an R-factor of 0.148. The refined structure, includes a peptidomimetic, statine-based inhibitor, LP-149, which is an, even more potent inhibitor of HIV PR. Kinetic parameters were obtained for, the cleavage of five substrates by FIV PR, and inhibition constants were, measured for four inhibitors. The structure of FIV PR resembles other, related retroviral enzymes although few inhibitors of HIV PR are capable, of inhibiting FIV PR. The structure of FIV PR will enhance our knowledge, of this class of enzymes, and will direct testing of new proteinase, inhibitors in a feline animal model.
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<StructureSection load='1fiv' size='340' side='right'caption='[[1fiv]], [[Resolution|resolution]] 2.00&Aring;' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[1fiv]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Feline_immunodeficiency_virus Feline immunodeficiency virus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1FIV OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1FIV FirstGlance]. <br>
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</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2&#8491;</td></tr>
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<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=ACE:ACETYL+GROUP'>ACE</scene>, <scene name='pdbligand=ALN:NAPHTHALEN-2-YL-3-ALANINE'>ALN</scene>, <scene name='pdbligand=NH2:AMINO+GROUP'>NH2</scene>, <scene name='pdbligand=STA:STATINE'>STA</scene></td></tr>
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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1fiv FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1fiv OCA], [https://pdbe.org/1fiv PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1fiv RCSB], [https://www.ebi.ac.uk/pdbsum/1fiv PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1fiv ProSAT]</span></td></tr>
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/POL_FIVPE POL_FIVPE] During replicative cycle of retroviruses, the reverse-transcribed viral DNA is integrated into the host chromosome by the viral integrase enzyme. RNase H activity is associated with the reverse transcriptase.
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== Evolutionary Conservation ==
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[[Image:Consurf_key_small.gif|200px|right]]
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Check<jmol>
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<jmolCheckbox>
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<scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/fi/1fiv_consurf.spt"</scriptWhenChecked>
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<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview03.spt</scriptWhenUnchecked>
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<text>to colour the structure by Evolutionary Conservation</text>
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</jmolCheckbox>
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</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/main_output.php?pdb_ID=1fiv ConSurf].
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<div style="clear:both"></div>
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<div style="background-color:#fffaf0;">
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== Publication Abstract from PubMed ==
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The crystal structure of a recombinant form of the proteinase encoded by the feline immunodeficiency virus (FIV PR) has been solved at 2 A resolution and refined to an R-factor of 0.148. The refined structure includes a peptidomimetic, statine-based inhibitor, LP-149, which is an even more potent inhibitor of HIV PR. Kinetic parameters were obtained for the cleavage of five substrates by FIV PR, and inhibition constants were measured for four inhibitors. The structure of FIV PR resembles other related retroviral enzymes although few inhibitors of HIV PR are capable of inhibiting FIV PR. The structure of FIV PR will enhance our knowledge of this class of enzymes, and will direct testing of new proteinase inhibitors in a feline animal model.
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==About this Structure==
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Structure of an inhibitor complex of the proteinase from feline immunodeficiency virus.,Wlodawer A, Gustchina A, Reshetnikova L, Lubkowski J, Zdanov A, Hui KY, Angleton EL, Farmerie WG, Goodenow MM, Bhatt D, et al. Nat Struct Biol. 1995 Jun;2(6):480-8. PMID:7664111<ref>PMID:7664111</ref>
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1FIV is a [http://en.wikipedia.org/wiki/Single_protein Single protein] structure of sequence from [http://en.wikipedia.org/wiki/Feline_immunodeficiency_virus Feline immunodeficiency virus] with ACE, NH2 and NPY as [http://en.wikipedia.org/wiki/ligands ligands]. Active as [http://en.wikipedia.org/wiki/HIV-1_retropepsin HIV-1 retropepsin], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.4.23.16 3.4.23.16] Full crystallographic information is available from [http://ispc.weizmann.ac.il/oca-bin/ocashort?id=1FIV OCA].
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==Reference==
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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Structure of an inhibitor complex of the proteinase from feline immunodeficiency virus., Wlodawer A, Gustchina A, Reshetnikova L, Lubkowski J, Zdanov A, Hui KY, Angleton EL, Farmerie WG, Goodenow MM, Bhatt D, et al., Nat Struct Biol. 1995 Jun;2(6):480-8. PMID:[http://ispc.weizmann.ac.il//pmbin/getpm?pmid=7664111 7664111]
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</div>
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[[Category: Feline immunodeficiency virus]]
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<div class="pdbe-citations 1fiv" style="background-color:#fffaf0;"></div>
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[[Category: HIV-1 retropepsin]]
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[[Category: Single protein]]
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[[Category: Gustchina, A.]]
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[[Category: Lubkowski, J.]]
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[[Category: Reshetnikova, L.]]
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[[Category: Wlodawer, A.]]
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[[Category: Zdanov, A.]]
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[[Category: ACE]]
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[[Category: NH2]]
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[[Category: NPY]]
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[[Category: hydrolase (acid proteinase)]]
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''Page seeded by [http://ispc.weizmann.ac.il/oca OCA ] on Tue Nov 20 14:57:21 2007''
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==See Also==
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*[[Immunodeficiency virus protease 3D structures|Immunodeficiency virus protease 3D structures]]
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*[[Integrase|Integrase]]
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== References ==
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<references/>
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__TOC__
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</StructureSection>
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[[Category: Feline immunodeficiency virus]]
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[[Category: Large Structures]]
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[[Category: Gustchina A]]
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[[Category: Lubkowski J]]
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[[Category: Reshetnikova L]]
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[[Category: Wlodawer A]]
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[[Category: Zdanov A]]

Current revision

STRUCTURE OF AN INHIBITOR COMPLEX OF PROTEINASE FROM FELINE IMMUNODEFICIENCY VIRUS

PDB ID 1fiv

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