View source for 4uvr


==Binding mode, selectivity and potency of N-indolyl-oxopyridinyl-4- amino-propanyl-based inhibitors targeting Trypanosoma cruzi CYP51==
<StructureSection load='4uvr' size='340' side='right'caption='[[4uvr]], [[Resolution|resolution]] 2.48&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[4uvr]] 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=4UVR OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=4UVR 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]] 2.48&#8491;</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=J5Y:NALPHA-{4-[4-(5-CHLORO-2-METHYLPHENYL)PIPERAZIN-1-YL]-2-FLUOROBENZOYL}-N-PYRIDIN-4-YL-D-TRYPTOPHANAMIDE'>J5Y</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</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=4uvr FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4uvr OCA], [https://pdbe.org/4uvr PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=4uvr RCSB], [https://www.ebi.ac.uk/pdbsum/4uvr PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=4uvr 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 ==
Chagas disease is a chronic infection in humans caused by Trypanosoma cruzi and manifested in progressive cardiomyopathy and/or gastrointestinal dysfunction. Limited therapeutic options to prevent and treat Chagas disease put 8 million people infected with T. cruzi worldwide at risk. CYP51, involved in the biosynthesis of the membrane sterol component in eukaryotes, is a promising drug target in T. cruzi. We report the structure-activity relationships (SAR) of an N-arylpiperazine series of N-indolyloxopyridinyl-4-aminopropanyl-based inhibitors designed to probe the impact of substituents in the terminal N-phenyl ring on binding mode, selectivity and potency. Depending on the substituents at C-4, two distinct ring binding modes, buried and solvent-exposed, have been observed by X-ray structure analysis (resolution of 1.95-2.48 A). The 5-chloro-substituted analogs 9 and 10 with no substituent at C-4 demonstrated improved selectivity and potency, suppressing &gt;/=99.8% parasitemia in mice when administered orally at 25 mg/kg, b.i.d., for 4 days.

Binding Mode and Potency of N-Indolyloxopyridinyl-4-aminopropanyl-Based Inhibitors Targeting Trypanosoma cruzi CYP51.,Vieira DF, Choi JY, Calvet CM, Siqueira-Neto JL, Johnston JB, Kellar D, Gut J, Cameron MD, McKerrow JH, Roush WR, Podust LM J Med Chem. 2014 Nov 25. PMID:25393646<ref>PMID:25393646</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 4uvr" style="background-color:#fffaf0;"></div>

==See Also==
*[[Cytochrome P450 3D structures|Cytochrome P450 3D structures]]
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Large Structures]]
[[Category: Trypanosoma cruzi]]
[[Category: Calvet CM]]
[[Category: Choi JY]]
[[Category: Gut J]]
[[Category: Johnston JB]]
[[Category: Kellar D]]
[[Category: McKerrow JH]]
[[Category: Podust LM]]
[[Category: Roush WR]]
[[Category: Siqueira-Neto JL]]
[[Category: Vieira DF]]