1z11: Difference between revisions

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[[Image:1z11.png|left|200px]]


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==Crystal Structure of Human Microsomal P450 2A6 with Methoxsalen Bound==
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<StructureSection load='1z11' size='340' side='right'caption='[[1z11]], [[Resolution|resolution]] 2.05&Aring;' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[1z11]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1Z11 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1Z11 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]] 2.05&#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=8MO:METHOXSALEN'>8MO</scene>, <scene name='pdbligand=HEM:PROTOPORPHYRIN+IX+CONTAINING+FE'>HEM</scene></td></tr>
{{STRUCTURE_1z11|  PDB=1z11  |  SCENE=  }}
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1z11 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1z11 OCA], [https://pdbe.org/1z11 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1z11 RCSB], [https://www.ebi.ac.uk/pdbsum/1z11 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1z11 ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/CP2A6_HUMAN CP2A6_HUMAN] Exhibits a high coumarin 7-hydroxylase activity. Can act in the hydroxylation of the anti-cancer drugs cyclophosphamide and ifosphamide. Competent in the metabolic activation of aflatoxin B1. Constitutes the major nicotine C-oxidase. Acts as a 1,4-cineole 2-exo-monooxygenase. Possesses low phenacetin O-deethylation activity.<ref>PMID:1889415</ref> <ref>PMID:1944238</ref> <ref>PMID:11695850</ref> <ref>PMID:16086027</ref> <ref>PMID:17125252</ref> <ref>PMID:18779312</ref>
== Evolutionary Conservation ==
[[Image:Consurf_key_small.gif|200px|right]]
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    <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=1z11 ConSurf].
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== Publication Abstract from PubMed ==
Human microsomal cytochrome P450 2A6 (CYP2A6) contributes extensively to nicotine detoxication but also activates tobacco-specific procarcinogens to mutagenic products. The CYP2A6 structure shows a compact, hydrophobic active site with one hydrogen bond donor, Asn297, that orients coumarin for regioselective oxidation. The inhibitor methoxsalen effectively fills the active site cavity without substantially perturbing the structure. The structure should aid the design of inhibitors to reduce smoking and tobacco-related cancers.


===Crystal Structure of Human Microsomal P450 2A6 with Methoxsalen Bound===
Structures of human microsomal cytochrome P450 2A6 complexed with coumarin and methoxsalen.,Yano JK, Hsu MH, Griffin KJ, Stout CD, Johnson EF Nat Struct Mol Biol. 2005 Sep;12(9):822-3. Epub 2005 Aug 7. PMID:16086027<ref>PMID:16086027</ref>


 
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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{{ABSTRACT_PUBMED_16086027}}
 
==About this Structure==
[[1z11]] is a 4 chain structure of [[Cytochrome P450]] with sequence from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1Z11 OCA].


==See Also==
==See Also==
*[[Cytochrome P450]]
*[[Cytochrome P450 3D structures|Cytochrome P450 3D structures]]
 
== References ==
==Reference==
<references/>
<ref group="xtra">PMID:16086027</ref><references group="xtra"/>
__TOC__
</StructureSection>
[[Category: Homo sapiens]]
[[Category: Homo sapiens]]
[[Category: Unspecific monooxygenase]]
[[Category: Large Structures]]
[[Category: Griffin, K J.]]
[[Category: Griffin KJ]]
[[Category: Hsu, M H.]]
[[Category: Hsu MH]]
[[Category: Johnson, E F.]]
[[Category: Johnson EF]]
[[Category: Stout, C D.]]
[[Category: Stout CD]]
[[Category: Yano, J K.]]
[[Category: Yano JK]]
[[Category: Coumarin 7-hydroxylase]]
[[Category: Cyp2a6]]
[[Category: Drug metabolizing enzyme]]
[[Category: Heme]]
[[Category: Methoxsalen]]
[[Category: Monooxygenase]]
[[Category: Nicotine oxidase]]
[[Category: Oxidoreductase]]
[[Category: P450]]
[[Category: P450 2a6]]

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