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New page: left|200px<br /> <applet load="1h36" size="450" color="white" frame="true" align="right" spinBox="true" caption="1h36, resolution 2.8Å" /> '''STRUCTURES OF HUMAN ... |
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== | ==Structures of Human Oxidosqualene Cyclase Inhibitors Bound to an Homologous Enzyme== | ||
The binding structures of 11 human oxidosqualene cyclase inhibitors | <StructureSection load='1h36' size='340' side='right'caption='[[1h36]], [[Resolution|resolution]] 2.80Å' scene=''> | ||
== Structural highlights == | |||
<table><tr><td colspan='2'>[[1h36]] is a 3 chain structure with sequence from [https://en.wikipedia.org/wiki/Alicyclobacillus_acidocaldarius Alicyclobacillus acidocaldarius]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1H36 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1H36 FirstGlance]. <br> | |||
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.8Å</td></tr> | |||
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=C8E:(HYDROXYETHYLOXY)TRI(ETHYLOXY)OCTANE'>C8E</scene>, <scene name='pdbligand=R88:(4-BROMOPHENYL)[4-({(2E)-4-[CYCLOPROPYL(METHYL)AMINO]BUT-2-ENYL}OXY)PHENYL]METHANONE'>R88</scene></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=1h36 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1h36 OCA], [https://pdbe.org/1h36 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1h36 RCSB], [https://www.ebi.ac.uk/pdbsum/1h36 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1h36 ProSAT]</span></td></tr> | |||
</table> | |||
== Function == | |||
[https://www.uniprot.org/uniprot/SQHC_ALIAD SQHC_ALIAD] Catalyzes the cyclization of squalene into hopene. | |||
== Evolutionary Conservation == | |||
[[Image:Consurf_key_small.gif|200px|right]] | |||
Check<jmol> | |||
<jmolCheckbox> | |||
<scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/h3/1h36_consurf.spt"</scriptWhenChecked> | |||
<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked> | |||
<text>to colour the structure by Evolutionary Conservation</text> | |||
</jmolCheckbox> | |||
</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=1h36 ConSurf]. | |||
<div style="clear:both"></div> | |||
<div style="background-color:#fffaf0;"> | |||
== Publication Abstract from PubMed == | |||
The binding structures of 11 human oxidosqualene cyclase inhibitors designed as cholesterol-lowering agents were determined for the squalene-hopene cyclase from Alicyclobacillus acidocaldarius, which is the only structurally known homologue of the human enzyme. The complexes were produced by cocrystallization, and the structures were elucidated by X-ray diffraction analyses. All inhibitors were bound in the large active center cavity. The detailed binding structures are presented and discussed in the light of the IC50 values of these 11 as well as 17 other inhibitors. They provide a consistent picture for the inhibition of the bacterial enzyme and can be used to adjust and improve homology models of the human enzyme. The detailed active center structures of the two enzymes are too different to show an IC50 correlation. | |||
Binding structures and potencies of oxidosqualene cyclase inhibitors with the homologous squalene-hopene cyclase.,Lenhart A, Reinert DJ, Aebi JD, Dehmlow H, Morand OH, Schulz GE J Med Chem. 2003 May 22;46(11):2083-92. PMID:12747780<ref>PMID:12747780</ref> | |||
== | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | ||
</div> | |||
<div class="pdbe-citations 1h36" style="background-color:#fffaf0;"></div> | |||
==See Also== | |||
*[[Squalene-hopene cyclase|Squalene-hopene cyclase]] | |||
== References == | |||
<references/> | |||
__TOC__ | |||
</StructureSection> | |||
[[Category: Alicyclobacillus acidocaldarius]] | [[Category: Alicyclobacillus acidocaldarius]] | ||
[[Category: | [[Category: Large Structures]] | ||
[[Category: Aebi | [[Category: Aebi JD]] | ||
[[Category: Dehmlow | [[Category: Dehmlow H]] | ||
[[Category: Lenhart | [[Category: Lenhart A]] | ||
[[Category: Morand | [[Category: Morand OH]] | ||
[[Category: Reinert | [[Category: Reinert DJ]] | ||
[[Category: Schulz | [[Category: Schulz GE]] | ||
[[Category: Weihofen | [[Category: Weihofen WA]] | ||
Latest revision as of 11:52, 9 May 2024
Structures of Human Oxidosqualene Cyclase Inhibitors Bound to an Homologous EnzymeStructures of Human Oxidosqualene Cyclase Inhibitors Bound to an Homologous Enzyme
Structural highlights
FunctionSQHC_ALIAD Catalyzes the cyclization of squalene into hopene. Evolutionary Conservation Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf. Publication Abstract from PubMedThe binding structures of 11 human oxidosqualene cyclase inhibitors designed as cholesterol-lowering agents were determined for the squalene-hopene cyclase from Alicyclobacillus acidocaldarius, which is the only structurally known homologue of the human enzyme. The complexes were produced by cocrystallization, and the structures were elucidated by X-ray diffraction analyses. All inhibitors were bound in the large active center cavity. The detailed binding structures are presented and discussed in the light of the IC50 values of these 11 as well as 17 other inhibitors. They provide a consistent picture for the inhibition of the bacterial enzyme and can be used to adjust and improve homology models of the human enzyme. The detailed active center structures of the two enzymes are too different to show an IC50 correlation. Binding structures and potencies of oxidosqualene cyclase inhibitors with the homologous squalene-hopene cyclase.,Lenhart A, Reinert DJ, Aebi JD, Dehmlow H, Morand OH, Schulz GE J Med Chem. 2003 May 22;46(11):2083-92. PMID:12747780[1] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See AlsoReferences
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