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5ajr
From Proteopedia
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| - | '''Unreleased structure''' | ||
| - | + | ==Sterol 14-alpha demethylase (CYP51) from Trypanosoma cruzi in complex with the 1-tetrazole derivative VT-1161 ((R)-2-(2,4-Difluorophenyl)-1, 1-difluoro-3-(1H-tetrazol-1-yl)-1-(5-(4-(2,2,2-trifluoroethoxy)phenyl) pyridin-2-yl)propan-2-ol)== | |
| + | <StructureSection load='5ajr' size='340' side='right'caption='[[5ajr]], [[Resolution|resolution]] 2.75Å' scene=''> | ||
| + | == Structural highlights == | ||
| + | <table><tr><td colspan='2'>[[5ajr]] 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=5AJR OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=5AJR 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]] 2.75Å</td></tr> | ||
| + | <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=VT1:(R)-2-(2,4-DIFLUOROPHENYL)-1,1-DIFLUORO-3-(1H-TETRAZOL-1-YL)-1-(5-(4-(2,2,2-TRIFLUOROETHOXY)PHENYL)PYRIDIN-2-YL)PROPAN-2-OL'>VT1</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=5ajr FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5ajr OCA], [https://pdbe.org/5ajr PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=5ajr RCSB], [https://www.ebi.ac.uk/pdbsum/5ajr PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=5ajr ProSAT]</span></td></tr> | ||
| + | </table> | ||
| + | == Function == | ||
| + | [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] | ||
| + | <div style="background-color:#fffaf0;"> | ||
| + | == Publication Abstract from PubMed == | ||
| + | A novel antifungal drug candidate, 1-tetrazole VT-1161 [(R)-2-(2,4-difluorophenyl)-1,1-difluoro-3-(1H-tetrazol-1-yl)-1-(5-(4-(2,2,2-trif luoroethoxy)phenyl)pyridin-2-yl)propan-2-ol], which is currently in two Phase 2b antifungal clinical trials, was found to be a tight-binding ligand (the apparent dissociation constant (Kd) = 24 nM) and a potent inhibitor of cytochrome P450 sterol 14alpha-demethylase (CYP51) from the protozoan pathogen Trypanosoma cruzi. Moreover, VT-1161 revealed high antiparasitic efficiency in cellular experiments against amastigotes of the Tulahuen strain of T. cruzi (EC50=2.5 nM) and was active in vivo, causing >99.8% of peak parasitemia suppression in a mouse model of infection with the naturally drug-resistant Y strain of the parasite. The data strongly support the potential utility of VT-1161 in the treatment of Chagas disease. Structural characterization of T. cruzi CYP51 in complex with VT-1161 provides insights into the molecular basis for the compound inhibitory potency and paves the way for further rational development of this novel, tetrazole-based inhibitory chemotype, both for antiprotozoan, and for antifungal chemotherapy. | ||
| - | + | Antiparasitic effect in vitro, activity in a murine model of Chagas disease, and structural characterization in complex with the target enzyme CYP51 from Trypanosoma cruzi of the potent clinical candidate VT-1161.,Hoekstra WJ, Hargrove TY, Wawrzak Z, Batista DD, da Silva CF, Nefertiti AS, Rachakonda G, Schotzinger RJ, Villalta F, Soeiro MN, Lepesheva GI Antimicrob Agents Chemother. 2015 Dec 7. pii: AAC.02287-15. PMID:26643331<ref>PMID:26643331</ref> | |
| - | + | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |
| - | [[Category: | + | </div> |
| - | [[Category: | + | <div class="pdbe-citations 5ajr" style="background-color:#fffaf0;"></div> |
| - | [[Category: Hoekstra | + | == References == |
| - | [[Category: I Lepesheva | + | <references/> |
| + | __TOC__ | ||
| + | </StructureSection> | ||
| + | [[Category: Large Structures]] | ||
| + | [[Category: Trypanosoma cruzi]] | ||
| + | [[Category: Hoekstra W]] | ||
| + | [[Category: I Lepesheva G]] | ||
| + | [[Category: Wawrzak Z]] | ||
Current revision
Sterol 14-alpha demethylase (CYP51) from Trypanosoma cruzi in complex with the 1-tetrazole derivative VT-1161 ((R)-2-(2,4-Difluorophenyl)-1, 1-difluoro-3-(1H-tetrazol-1-yl)-1-(5-(4-(2,2,2-trifluoroethoxy)phenyl) pyridin-2-yl)propan-2-ol)
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