2xn8

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[[Image:2xn8.png|left|200px]]
 
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==X-RAY STRUCTURE OF THE SUBSTRATE-FREE MYCOBACTERIUM TUBERCULOSIS CYTOCHROME P450 CYP125==
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The line below this paragraph, containing "STRUCTURE_2xn8", creates the "Structure Box" on the page.
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<StructureSection load='2xn8' size='340' side='right'caption='[[2xn8]], [[Resolution|resolution]] 1.64&Aring;' scene=''>
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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'>[[2xn8]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Mycobacterium_tuberculosis_H37Rv Mycobacterium tuberculosis H37Rv]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2XN8 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2XN8 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]] 1.64&#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=SO4:SULFATE+ION'>SO4</scene></td></tr>
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{{STRUCTURE_2xn8| PDB=2xn8 | 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=2xn8 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2xn8 OCA], [https://pdbe.org/2xn8 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2xn8 RCSB], [https://www.ebi.ac.uk/pdbsum/2xn8 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2xn8 ProSAT]</span></td></tr>
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/CP125_MYCTU CP125_MYCTU] Catalyzes the C-27 hydroxylation of cholest-4-en-3-one and cholesterol and subsequently oxidizes the alcohol of the former to the cholest-4-en-3-one-27-oic acid via the aldehyde intermediate. Not required to incorporate the cholesterol side-chain carbon atoms into cellular lipids.<ref>PMID:19846551</ref> <ref>PMID:20545858</ref>
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<div style="background-color:#fffaf0;">
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== Publication Abstract from PubMed ==
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Cytochrome P450 CYP125A1 of Mycobacteriumtuberculosis, a potential therapeutic target for tuberculosis in humans, initiates degradation of the aliphatic chain of host cholesterol and is essential for establishing M. tuberculosis infection in a mouse model of disease. We explored the interactions of CYP125A1 with a reverse type I inhibitor by X-ray structure analysis and UV-vis spectroscopy. Compound LP10 (alpha-[(4-methylcyclohexyl)carbonyl amino]-N-4-pyridinyl-1H-indole-3-propanamide), previously identified as a potent type II inhibitor of Trypanosomacruzi CYP51, shifts CYP125A1 to a water-coordinated low-spin state upon binding with low micromolar affinity. When LP10 is present in the active site, the crystal structure and spectral characteristics both demonstrate changes in lipophilic and electronic properties favoring coordination of the iron axial water ligand. These results provide an insight into the structural requirements for developing selective CYP125A1 inhibitors.
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===X-RAY STRUCTURE OF THE SUBSTRATE-FREE MYCOBACTERIUM TUBERCULOSIS CYTOCHROME P450 CYP125===
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Reverse type I inhibitor of Mycobacteriumtuberculosis CYP125A1.,Ouellet H, Kells PM, Ortiz de Montellano PR, Podust LM Bioorg Med Chem Lett. 2011 Jan 1;21(1):332-7. Epub 2010 Nov 5. PMID:21109436<ref>PMID:21109436</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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<div class="pdbe-citations 2xn8" style="background-color:#fffaf0;"></div>
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(as it appears on PubMed at http://www.pubmed.gov), where 21109436 is the PubMed ID number.
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== References ==
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<references/>
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{{ABSTRACT_PUBMED_21109436}}
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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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[[2xn8]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Mycobacterium_tuberculosis Mycobacterium tuberculosis]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2XN8 OCA].
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[[Category: Mycobacterium tuberculosis H37Rv]]
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[[Category: Kells PM]]
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==Reference==
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[[Category: Ortiz de Montellano PR]]
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<ref group="xtra">PMID:21109436</ref><references group="xtra"/>
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[[Category: Ouellet H]]
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[[Category: Mycobacterium tuberculosis]]
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[[Category: Podust LM]]
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[[Category: Kells, P M.]]
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[[Category: Montellano, P R.Ortiz De.]]
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[[Category: Ouellet, H.]]
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[[Category: Podust, L M.]]
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[[Category: Cholesterol degradation]]
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[[Category: Monooxygenase]]
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[[Category: Oxidoreductase]]
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[[Category: Reverse type i inhibitor]]
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Current revision

X-RAY STRUCTURE OF THE SUBSTRATE-FREE MYCOBACTERIUM TUBERCULOSIS CYTOCHROME P450 CYP125

PDB ID 2xn8

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