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2hi4

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==Crystal Structure of Human Microsomal P450 1A2 in complex with alpha-naphthoflavone==
==Crystal Structure of Human Microsomal P450 1A2 in complex with alpha-naphthoflavone==
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<StructureSection load='2hi4' size='340' side='right' caption='[[2hi4]], [[Resolution|resolution]] 1.95&Aring;' scene=''>
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<StructureSection load='2hi4' size='340' side='right'caption='[[2hi4]], [[Resolution|resolution]] 1.95&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
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<table><tr><td colspan='2'>[[2hi4]] is a 1 chain structure 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=2HI4 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2HI4 FirstGlance]. <br>
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<table><tr><td colspan='2'>[[2hi4]] is a 1 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=2HI4 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2HI4 FirstGlance]. <br>
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</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=BHF:2-PHENYL-4H-BENZO[H]CHROMEN-4-ONE'>BHF</scene>, <scene name='pdbligand=HEM:PROTOPORPHYRIN+IX+CONTAINING+FE'>HEM</scene></td></tr>
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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]] 1.95&#8491;</td></tr>
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<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1z10|1z10]], [[1pq2|1pq2]], [[1r90|1r90]], [[1tqn|1tqn]]</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=BHF:2-PHENYL-4H-BENZO[H]CHROMEN-4-ONE'>BHF</scene>, <scene name='pdbligand=HEM:PROTOPORPHYRIN+IX+CONTAINING+FE'>HEM</scene></td></tr>
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<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">CYP1A2 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 Homo sapiens])</td></tr>
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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=2hi4 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2hi4 OCA], [https://pdbe.org/2hi4 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2hi4 RCSB], [https://www.ebi.ac.uk/pdbsum/2hi4 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2hi4 ProSAT]</span></td></tr>
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<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Unspecific_monooxygenase Unspecific monooxygenase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=1.14.14.1 1.14.14.1] </span></td></tr>
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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2hi4 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2hi4 OCA], [http://www.rcsb.org/pdb/explore.do?structureId=2hi4 RCSB], [http://www.ebi.ac.uk/pdbsum/2hi4 PDBsum]</span></td></tr>
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</table>
</table>
== Function ==
== Function ==
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[[http://www.uniprot.org/uniprot/CP1A2_HUMAN CP1A2_HUMAN]] Cytochromes P450 are a group of heme-thiolate monooxygenases. In liver microsomes, this enzyme is involved in an NADPH-dependent electron transport pathway. It oxidizes a variety of structurally unrelated compounds, including steroids, fatty acids, and xenobiotics. Most active in catalyzing 2-hydroxylation. Caffeine is metabolized primarily by cytochrome CYP1A2 in the liver through an initial N3-demethylation. Also acts in the metabolism of aflatoxin B1 and acetaminophen. Participates in the bioactivation of carcinogenic aromatic and heterocyclic amines. Catalizes the N-hydroxylation of heterocyclic amines and the O-deethylation of phenacetin.<ref>PMID:14725854</ref>
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[https://www.uniprot.org/uniprot/CP1A2_HUMAN CP1A2_HUMAN] Cytochromes P450 are a group of heme-thiolate monooxygenases. In liver microsomes, this enzyme is involved in an NADPH-dependent electron transport pathway. It oxidizes a variety of structurally unrelated compounds, including steroids, fatty acids, and xenobiotics. Most active in catalyzing 2-hydroxylation. Caffeine is metabolized primarily by cytochrome CYP1A2 in the liver through an initial N3-demethylation. Also acts in the metabolism of aflatoxin B1 and acetaminophen. Participates in the bioactivation of carcinogenic aromatic and heterocyclic amines. Catalizes the N-hydroxylation of heterocyclic amines and the O-deethylation of phenacetin.<ref>PMID:14725854</ref>
== Evolutionary Conservation ==
== Evolutionary Conservation ==
[[Image:Consurf_key_small.gif|200px|right]]
[[Image:Consurf_key_small.gif|200px|right]]
Check<jmol>
Check<jmol>
<jmolCheckbox>
<jmolCheckbox>
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<scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/hi/2hi4_consurf.spt"</scriptWhenChecked>
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<scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/hi/2hi4_consurf.spt"</scriptWhenChecked>
<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
<text>to colour the structure by Evolutionary Conservation</text>
<text>to colour the structure by Evolutionary Conservation</text>
</jmolCheckbox>
</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/chain_selection.php?pdb_ID=2ata ConSurf].
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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=2hi4 ConSurf].
<div style="clear:both"></div>
<div style="clear:both"></div>
<div style="background-color:#fffaf0;">
<div style="background-color:#fffaf0;">
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
</div>
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<div class="pdbe-citations 2hi4" style="background-color:#fffaf0;"></div>
==See Also==
==See Also==
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*[[Cytochrome P450|Cytochrome P450]]
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*[[Cytochrome P450 3D structures|Cytochrome P450 3D structures]]
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*[[Drug Metabolism by CYP450 Enzymes|Drug Metabolism by CYP450 Enzymes]]
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== References ==
== References ==
<references/>
<references/>
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</StructureSection>
</StructureSection>
[[Category: Homo sapiens]]
[[Category: Homo sapiens]]
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[[Category: Unspecific monooxygenase]]
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[[Category: Large Structures]]
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[[Category: Johnson, E F]]
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[[Category: Johnson EF]]
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[[Category: Reynald, R L]]
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[[Category: Reynald RL]]
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[[Category: Sansen, S]]
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[[Category: Sansen S]]
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[[Category: Schoch, G S]]
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[[Category: Schoch GS]]
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[[Category: Stout, C D]]
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[[Category: Stout CD]]
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[[Category: Yano, J K]]
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[[Category: Yano JK]]
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[[Category: 8-benzoflavone]]
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[[Category: Alpha-naphthoflavone]]
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[[Category: Cyp1a2]]
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[[Category: Drug metabolizing enzyme]]
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[[Category: Heme]]
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[[Category: Monooxygenase]]
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[[Category: Oxidoreductase]]
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[[Category: P450]]
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[[Category: P450 1a2]]
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Current revision

Crystal Structure of Human Microsomal P450 1A2 in complex with alpha-naphthoflavone

PDB ID 2hi4

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