6ma8 - Revision history

OCA at 06:27, 11 October 2023

OCA — Wed, 11 Oct 2023 06:27:20 GMT

←Older revision		Revision as of 06:27, 11 October 2023
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	<StructureSection load='6ma8' size='340' side='right'caption='[[6ma8]], [[Resolution\|resolution]] 1.83Å' scene=''>		<StructureSection load='6ma8' size='340' side='right'caption='[[6ma8]], [[Resolution\|resolution]] 1.83Å' scene=''>
	== Structural highlights ==		== Structural highlights ==
-	<table><tr><td colspan='2'>[[6ma8]] is a 1 chain structure with sequence from [~~http~~://en.wikipedia.org/wiki/~~Human Human~~]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6MA8 OCA]. For a <b>guided tour on the structure components</b> use [~~http~~://~~oca~~.~~weizmann.ac.il/oca-docs~~/fgij/fg.htm?mol=6MA8 FirstGlance]. <br>	+	<table><tr><td colspan='2'>[[6ma8]] 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=6MA8 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=6MA8 FirstGlance]. <br>
-	</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand\|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=DMS:DIMETHYL+SULFOXIDE'>DMS</scene>, <scene name='pdbligand=EDO:1,2-ETHANEDIOL'>EDO</scene>, <scene name='pdbligand=GOL:GLYCEROL'>GOL</scene>, <scene name='pdbligand=HEM:PROTOPORPHYRIN+IX+CONTAINING+FE'>HEM</scene>, <scene name='pdbligand=PMF:PHENYLMETHYLSULFONYL+FLUORIDE'>PMF</scene>~~</td></tr>~~	+	</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models\|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution\|Resolution]] 1.83Å</td></tr>
-	~~<tr id='gene'><td class="sblockLbl"><b>[[Gene\|Gene:]]</b></td><td class="sblockDat">CYP3A4, CYP3A3 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 HUMAN])~~</td></tr>	+	<tr id='ligand'><td class="sblockLbl"><b>[[Ligand\|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=DMS:DIMETHYL+SULFOXIDE'>DMS</scene>, <scene name='pdbligand=EDO:1,2-ETHANEDIOL'>EDO</scene>, <scene name='pdbligand=GOL:GLYCEROL'>GOL</scene>, <scene name='pdbligand=HEM:PROTOPORPHYRIN+IX+CONTAINING+FE'>HEM</scene>, <scene name='pdbligand=PMF:PHENYLMETHYLSULFONYL+FLUORIDE'>PMF</scene></td></tr>
-	<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=6ma8 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6ma8 OCA], [~~http~~://pdbe.org/6ma8 PDBe], [~~http~~://www.rcsb.org/pdb/explore.do?structureId=6ma8 RCSB], [~~http~~://www.ebi.ac.uk/pdbsum/6ma8 PDBsum], [~~http~~://prosat.h-its.org/prosat/prosatexe?pdbcode=6ma8 ProSAT]</span></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=6ma8 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6ma8 OCA], [https://pdbe.org/6ma8 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=6ma8 RCSB], [https://www.ebi.ac.uk/pdbsum/6ma8 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=6ma8 ProSAT]</span></td></tr>
	</table>		</table>
	== Function ==		== Function ==
-	[~~[http~~://www.uniprot.org/uniprot/CP3A4_HUMAN CP3A4_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 performs a variety of oxidation reactions (e.g. caffeine 8-oxidation, omeprazole sulphoxidation, midazolam 1'-hydroxylation and midazolam 4-hydroxylation) of structurally unrelated compounds, including steroids, fatty acids, and xenobiotics. Acts as a 1,8-cineole 2-exo-monooxygenase. The enzyme also hydroxylates etoposide.<ref>PMID:11159812</ref>	+	[https://www.uniprot.org/uniprot/CP3A4_HUMAN CP3A4_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 performs a variety of oxidation reactions (e.g. caffeine 8-oxidation, omeprazole sulphoxidation, midazolam 1'-hydroxylation and midazolam 4-hydroxylation) of structurally unrelated compounds, including steroids, fatty acids, and xenobiotics. Acts as a 1,8-cineole 2-exo-monooxygenase. The enzyme also hydroxylates etoposide.<ref>PMID:11159812</ref>
	<div style="background-color:#fffaf0;">		<div style="background-color:#fffaf0;">
	== Publication Abstract from PubMed ==		== Publication Abstract from PubMed ==
Line 26:		Line 26:
	__TOC__		__TOC__
	</StructureSection>		</StructureSection>
-	[[Category: ~~Human~~]]	+	[[Category: Homo sapiens]]
	[[Category: Large Structures]]		[[Category: Large Structures]]
-	[[Category: Sevrioukova~~, I F]]~~	+	[[Category: Sevrioukova IF]]
-	~~[[Category: Cyp3a4]]~~	+
-	~~[[Category: Oxidoreductase]]~~	+
-	~~[[Category: Oxidoreductase-oxidoreductase inhibitor complex~~]]	+

OCA at 06:15, 12 June 2019

OCA — Wed, 12 Jun 2019 06:15:32 GMT

←Older revision		Revision as of 06:15, 12 June 2019
Line 1:		Line 1:

	==Human CYP3A4 bound to PMSF==		==Human CYP3A4 bound to PMSF==
-	<StructureSection load='6ma8' size='340' side='right' caption='[[6ma8]], [[Resolution\|resolution]] 1.83Å' scene=''>	+	<StructureSection load='6ma8' size='340' side='right'caption='[[6ma8]], [[Resolution\|resolution]] 1.83Å' scene=''>
	== Structural highlights ==		== Structural highlights ==
-	<table><tr><td colspan='2'>[[6ma8]] is a 1 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6MA8 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=6MA8 FirstGlance]. <br>	+	<table><tr><td colspan='2'>[[6ma8]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Human Human]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6MA8 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=6MA8 FirstGlance]. <br>
	</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand\|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=DMS:DIMETHYL+SULFOXIDE'>DMS</scene>, <scene name='pdbligand=EDO:1,2-ETHANEDIOL'>EDO</scene>, <scene name='pdbligand=GOL:GLYCEROL'>GOL</scene>, <scene name='pdbligand=HEM:PROTOPORPHYRIN+IX+CONTAINING+FE'>HEM</scene>, <scene name='pdbligand=PMF:PHENYLMETHYLSULFONYL+FLUORIDE'>PMF</scene></td></tr>		</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand\|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=DMS:DIMETHYL+SULFOXIDE'>DMS</scene>, <scene name='pdbligand=EDO:1,2-ETHANEDIOL'>EDO</scene>, <scene name='pdbligand=GOL:GLYCEROL'>GOL</scene>, <scene name='pdbligand=HEM:PROTOPORPHYRIN+IX+CONTAINING+FE'>HEM</scene>, <scene name='pdbligand=PMF:PHENYLMETHYLSULFONYL+FLUORIDE'>PMF</scene></td></tr>
		+	<tr id='gene'><td class="sblockLbl"><b>[[Gene\|Gene:]]</b></td><td class="sblockDat">CYP3A4, CYP3A3 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 HUMAN])</td></tr>
	<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=6ma8 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6ma8 OCA], [http://pdbe.org/6ma8 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=6ma8 RCSB], [http://www.ebi.ac.uk/pdbsum/6ma8 PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=6ma8 ProSAT]</span></td></tr>		<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=6ma8 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6ma8 OCA], [http://pdbe.org/6ma8 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=6ma8 RCSB], [http://www.ebi.ac.uk/pdbsum/6ma8 PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=6ma8 ProSAT]</span></td></tr>
	</table>		</table>
	== Function ==		== Function ==
	[[http://www.uniprot.org/uniprot/CP3A4_HUMAN CP3A4_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 performs a variety of oxidation reactions (e.g. caffeine 8-oxidation, omeprazole sulphoxidation, midazolam 1'-hydroxylation and midazolam 4-hydroxylation) of structurally unrelated compounds, including steroids, fatty acids, and xenobiotics. Acts as a 1,8-cineole 2-exo-monooxygenase. The enzyme also hydroxylates etoposide.<ref>PMID:11159812</ref>		[[http://www.uniprot.org/uniprot/CP3A4_HUMAN CP3A4_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 performs a variety of oxidation reactions (e.g. caffeine 8-oxidation, omeprazole sulphoxidation, midazolam 1'-hydroxylation and midazolam 4-hydroxylation) of structurally unrelated compounds, including steroids, fatty acids, and xenobiotics. Acts as a 1,8-cineole 2-exo-monooxygenase. The enzyme also hydroxylates etoposide.<ref>PMID:11159812</ref>
		+	<div style="background-color:#fffaf0;">
		+	== Publication Abstract from PubMed ==
		+	Binding of small inhibitory compounds to human cytochrome P450 3A4 (CYP3A4) could interfere with drug metabolism and lead to drug-drug interactions, the underlying mechanism of which is not fully understood due to insufficient structural information. This study investigated the interaction of recombinant CYP3A4 with a nonspecific inhibitor metyrapone, antifungal drug fluconazole, and protease inhibitor phenylmethanesulfonyl fluoride (PMSF). Metyrapone and fluconazole are classic type II ligands that inhibit CYP3A4 with medium strength by ligating to the heme iron, whereas PMSF, lacking the heme-ligating moiety, acts as a weak type I ligand and inhibitor of CYP3A4. High-resolution crystal structures revealed that the orientation of metyrapone is similar but not identical to that in the previously reported 1W0G model, whereas the flexible fluconazole adapts a conformer markedly different from that observed in the target CYP51 enzymes, which could explain its high potential for cross-reactivity. Besides hydrophobic and aromatic interactions with the heme and active site residues, both drugs establish water-mediated contacts that stabilize the inhibitory complexes. PMSF also binds near the catalytic center, with the phenyl group parallel to the heme. However, it does not displace the water ligand and is held in place via strong H-bonds formed by the sulfofluoride moiety with Ser119 and Arg212. Collectively, our data suggest that PMSF might have multiple binding sites and likely occupies the high-affinity site in the crystal structure. Moreover, its hydrolysis product, phenylmethanesulfonic acid, can also access and be retained in the CYP3A4 active site. Therefore, to avoid experimental artifacts, PMSF should be excluded from purification and assay solutions.
		+
		+	Interaction of Human Drug-Metabolizing CYP3A4 with Small Inhibitory Molecules.,Sevrioukova I Biochemistry. 2019 Feb 19;58(7):930-939. doi: 10.1021/acs.biochem.8b01221. Epub, 2019 Jan 24. PMID:30676743<ref>PMID:30676743</ref>
		+
		+	From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br>
		+	</div>
		+	<div class="pdbe-citations 6ma8" style="background-color:#fffaf0;"></div>
		+
		+	==See Also==
		+	*[[Cytochrome P450 3D structures\|Cytochrome P450 3D structures]]
	== References ==		== References ==
	<references/>		<references/>
	__TOC__		__TOC__
	</StructureSection>		</StructureSection>
		+	[[Category: Human]]
		+	[[Category: Large Structures]]
	[[Category: Sevrioukova, I F]]		[[Category: Sevrioukova, I F]]
	[[Category: Cyp3a4]]		[[Category: Cyp3a4]]
	[[Category: Oxidoreductase]]		[[Category: Oxidoreductase]]
	[[Category: Oxidoreductase-oxidoreductase inhibitor complex]]		[[Category: Oxidoreductase-oxidoreductase inhibitor complex]]

OCA at 12:13, 16 January 2019

OCA — Wed, 16 Jan 2019 12:13:27 GMT

←Older revision		Revision as of 12:13, 16 January 2019
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-	'''Unreleased structure'''

-	~~The entry~~ 6ma8 is ~~ON HOLD~~ ~~until Paper Publication~~	+	==Human CYP3A4 bound to PMSF==
-		+	<StructureSection load='6ma8' size='340' side='right' caption='[[6ma8]], [[Resolution\|resolution]] 1.83Å' scene=''>
-	~~Authors~~:	+	== Structural highlights ==
-		+	<table><tr><td colspan='2'>[[6ma8]] is a 1 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6MA8 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=6MA8 FirstGlance]. <br>
-	~~Description~~:	+	</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand\|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=DMS:DIMETHYL+SULFOXIDE'>DMS</scene>, <scene name='pdbligand=EDO:1,2-ETHANEDIOL'>EDO</scene>, <scene name='pdbligand=GOL:GLYCEROL'>GOL</scene>, <scene name='pdbligand=HEM:PROTOPORPHYRIN+IX+CONTAINING+FE'>HEM</scene>, <scene name='pdbligand=PMF:PHENYLMETHYLSULFONYL+FLUORIDE'>PMF</scene></td></tr>
-	[[Category: ~~Unreleased Structures~~]]	+	<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=6ma8 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6ma8 OCA], [http://pdbe.org/6ma8 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=6ma8 RCSB], [http://www.ebi.ac.uk/pdbsum/6ma8 PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=6ma8 ProSAT]</span></td></tr>
		+	</table>
		+	== Function ==
		+	[[http://www.uniprot.org/uniprot/CP3A4_HUMAN CP3A4_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 performs a variety of oxidation reactions (e.g. caffeine 8-oxidation, omeprazole sulphoxidation, midazolam 1'-hydroxylation and midazolam 4-hydroxylation) of structurally unrelated compounds, including steroids, fatty acids, and xenobiotics. Acts as a 1,8-cineole 2-exo-monooxygenase. The enzyme also hydroxylates etoposide.<ref>PMID:11159812</ref>
		+	== References ==
		+	<references/>
		+	__TOC__
		+	</StructureSection>
		+	[[Category: Sevrioukova, I F]]
		+	[[Category: Cyp3a4]]
		+	[[Category: Oxidoreductase]]
		+	[[Category: Oxidoreductase-oxidoreductase inhibitor complex]]

OCA at 18:22, 19 September 2018

OCA — Wed, 19 Sep 2018 18:22:33 GMT

←Older revision		Revision as of 18:22, 19 September 2018
Line 1:		Line 1:
	'''Unreleased structure'''		'''Unreleased structure'''

-	The entry 6ma8 is ON HOLD	+	The entry 6ma8 is ON HOLD until Paper Publication

	Authors:		Authors:

OCA: Protected "6ma8" [edit=sysop:move=sysop]

OCA — Wed, 05 Sep 2018 08:52:35 GMT

Protected "6ma8" [edit=sysop:move=sysop]

←Older revision

Revision as of 08:52, 5 September 2018

OCA: New page: '''Unreleased structure''' The entry 6ma8 is ON HOLD Authors: Description: Category: Unreleased Structures

OCA — Wed, 05 Sep 2018 08:52:34 GMT

New page: '''Unreleased structure''' The entry 6ma8 is ON HOLD Authors: Description: Category: Unreleased Structures

New page

'''Unreleased structure'''

The entry 6ma8 is ON HOLD

Authors:

Description:
[[Category: Unreleased Structures]]