3ksw

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{{Seed}}
 
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[[Image:3ksw.png|left|200px]]
 
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==Crystal structure of sterol 14alpha-demethylase (CYP51) from Trypanosoma cruzi in complex with an inhibitor VNF ((4-(4-chlorophenyl)-N-[2-(1H-imidazol-1-yl)-1-phenylethyl]benzamide)==
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The line below this paragraph, containing "STRUCTURE_3ksw", creates the "Structure Box" on the page.
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<StructureSection load='3ksw' size='340' side='right'caption='[[3ksw]], [[Resolution|resolution]] 3.05&Aring;' scene=''>
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You may change the PDB parameter (which sets the PDB file loaded into the applet)
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== Structural highlights ==
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or the SCENE parameter (which sets the initial scene displayed when the page is loaded),
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<table><tr><td colspan='2'>[[3ksw]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Trypanosoma_cruzi Trypanosoma cruzi]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3KSW OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3KSW FirstGlance]. <br>
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or leave the SCENE parameter empty for the default display.
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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]] 3.05&#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=HEM:PROTOPORPHYRIN+IX+CONTAINING+FE'>HEM</scene>, <scene name='pdbligand=VNF:4-CHLORO-N-[(1R)-2-(1H-IMIDAZOL-1-YL)-1-PHENYLETHYL]BIPHENYL-4-CARBOXAMIDE'>VNF</scene></td></tr>
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{{STRUCTURE_3ksw| PDB=3ksw | SCENE= }}
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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=3ksw FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3ksw OCA], [https://pdbe.org/3ksw PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3ksw RCSB], [https://www.ebi.ac.uk/pdbsum/3ksw PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3ksw ProSAT]</span></td></tr>
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/CP51_TRYCC CP51_TRYCC] Catalyzes C14-demethylation of lanosterol which is critical for ergosterol biosynthesis. It transforms lanosterol into 4,4'-dimethyl cholesta-8,14,24-triene-3-beta-ol (By similarity). Favors C4 dimethylated substrates, the substrate preference order is 24-methylenedihydrolanosterol > 24,25-dihydrolanosterol > lanosterol > obtusifoliol > norlanosterol.<ref>PMID:16321980</ref> [UniProtKB:P0A512]
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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/ks/3ksw_consurf.spt"</scriptWhenChecked>
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<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.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=3ksw 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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Trypanosoma cruzi causes Chagas disease (American trypanosomiasis), which threatens the lives of millions of people and remains incurable in its chronic stage. The antifungal drug posaconazole that blocks sterol biosynthesis in the parasite is the only compound entering clinical trials for the chronic form of this infection. Crystal structures of the drug target enzyme, Trypanosoma cruzi sterol 14alpha-demethylase (CYP51), complexed with posaconazole, another antifungal agent fluconazole and an experimental inhibitor, (R)-4'-chloro-N-(1-(2,4-dichlorophenyl)-2-(1H-imid-azol-1-yl)ethyl)bipheny l-4-carboxamide (VNF), allow prediction of important chemical features that enhance the drug potencies. Combined with comparative analysis of inhibitor binding parameters, influence on the catalytic activity of the trypanosomal enzyme and its human counterpart, and their cellular effects at different stages of the Trypanosoma cruzi life cycle, the structural data provide a molecular background to CYP51 inhibition and azole resistance and enlighten the path for directed design of new, more potent and selective drugs to develop an efficient treatment for Chagas disease.
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===Crystal structure of sterol 14alpha-demethylase (CYP51) from Trypanosoma cruzi in complex with an inhibitor VNF ((4-(4-chlorophenyl)-N-[2-(1H-imidazol-1-yl)-1-phenylethyl]benzamide)===
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Structural insights into inhibition of sterol 14alpha-demethylase in the human pathogen Trypanosoma cruzi.,Lepesheva GI, Hargrove TY, Anderson S, Kleshchenko Y, Furtak V, Wawrzak Z, Villalta F, Waterman MR J Biol Chem. 2010 Aug 13;285(33):25582-90. Epub 2010 Jun 8. PMID:20530488<ref>PMID:20530488</ref>
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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</div>
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The line below this paragraph, {{ABSTRACT_PUBMED_20530488}}, adds the Publication Abstract to the page
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<div class="pdbe-citations 3ksw" style="background-color:#fffaf0;"></div>
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(as it appears on PubMed at http://www.pubmed.gov), where 20530488 is the PubMed ID number.
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== References ==
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<references/>
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{{ABSTRACT_PUBMED_20530488}}
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__TOC__
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</StructureSection>
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==About this Structure==
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[[Category: Large Structures]]
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3KSW is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Trypanosoma_cruzi Trypanosoma cruzi]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3KSW OCA].
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==Reference==
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<ref group="xtra">PMID:20530488</ref><references group="xtra"/>
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[[Category: Sterol 14-demethylase]]
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[[Category: Trypanosoma cruzi]]
[[Category: Trypanosoma cruzi]]
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[[Category: Anderson, S.]]
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[[Category: Anderson S]]
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[[Category: Hargrove, T Y.]]
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[[Category: Hargrove TY]]
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[[Category: Lepesheva, G I.]]
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[[Category: Lepesheva GI]]
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[[Category: Waterman, M R.]]
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[[Category: Waterman MR]]
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[[Category: Wawrzak, Z.]]
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[[Category: Wawrzak Z]]
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[[Category: Cyp51]]
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[[Category: Cytochrome p450]]
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[[Category: Endoplasmic reticulum]]
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[[Category: Heme]]
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[[Category: Heme thiolate protein]]
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[[Category: Iron]]
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[[Category: Lipid synthesis]]
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[[Category: Lipid]]
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[[Category: Membrane]]
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[[Category: Metal-binding]]
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[[Category: Monooxygenase]]
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[[Category: Nadp]]
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[[Category: Oxidoreductase]]
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[[Category: Steroid biosynthesis]]
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[[Category: Sterol 14-alpha demethylase]]
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[[Category: Sterol biosynthesis]]
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[[Category: Transmembrane protein]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Wed Aug 25 08:25:28 2010''
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Current revision

Crystal structure of sterol 14alpha-demethylase (CYP51) from Trypanosoma cruzi in complex with an inhibitor VNF ((4-(4-chlorophenyl)-N-[2-(1H-imidazol-1-yl)-1-phenylethyl]benzamide)

PDB ID 3ksw

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