1olm - Revision history

OCA at 09:01, 9 May 2024

2024-05-09T09:01:27Z

←Older revision		Revision as of 09:01, 9 May 2024
Line 20:		Line 20:
	</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=1olm ConSurf].		</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=1olm ConSurf].
	<div style="clear:both"></div>		<div style="clear:both"></div>
		+	<div style="background-color:#fffaf0;">
		+	== Publication Abstract from PubMed ==
		+	The vast majority of monomeric lipid transport in nature is performed by lipid-specific protein carriers. This class of proteins can enclose cognate lipid molecules in a hydrophobic cavity and transport them across the aqueous environment. Supernatant protein factor (SPF) is an enigmatic representative of monomeric lipid transporters belonging to the SEC14 family. SPF stimulates squalene epoxidation, a downstream step of the cholesterol biosynthetic pathway, by an unknown mechanism. Here, we present the three-dimensional crystal structure of human SPF in complex with RRR-alpha-tocopherylquinone, the major physiological oxidation product of RRR-alpha-tocopherol, at a resolution of 1.95A. The structure of the complex reveals how SPF sequesters RRR-alpha-tocopherylquinone (RRR-alpha-TQ) in its protein body and permits a comparison with the recently solved structure of human alpha-tocopherol transfer protein (alpha-TTP) in complex with RRR-alpha-tocopherol. Recent findings have shown that RRR-alpha-TQ is reduced in vivo to RRR-alpha-TQH(2), the latter has been suggested to protect low-density lipoprotein (LDL) particles from oxidation. Hence, the antioxidant function of the redox couple RRR-alpha-TQ/RRR-alpha-TQH(2) in blocking LDL oxidation may reduce cellular cholesterol uptake and thus explain how SPF upregulates cholesterol synthesis.
		+
		+	Supernatant protein factor in complex with RRR-alpha-tocopherylquinone: a link between oxidized Vitamin E and cholesterol biosynthesis.,Stocker A, Baumann U J Mol Biol. 2003 Sep 26;332(4):759-65. PMID:12972248<ref>PMID:12972248</ref>
		+
		+	From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br>
		+	</div>
		+	<div class="pdbe-citations 1olm" style="background-color:#fffaf0;"></div>
		+	== References ==
		+	<references/>
	__TOC__		__TOC__
	</StructureSection>		</StructureSection>

OCA at 05:48, 17 April 2024

2024-04-17T05:48:56Z

←Older revision		Revision as of 05:48, 17 April 2024
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	<StructureSection load='1olm' size='340' side='right'caption='[[1olm]], [[Resolution\|resolution]] 1.95Å' scene=''>		<StructureSection load='1olm' size='340' side='right'caption='[[1olm]], [[Resolution\|resolution]] 1.95Å' scene=''>
	== Structural highlights ==		== Structural highlights ==
-	<table><tr><td colspan='2'>[[1olm]] is a 3 chain structure with sequence from [https://en.wikipedia.org/wiki/~~Human Human~~]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1OLM OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1OLM FirstGlance]. <br>	+	<table><tr><td colspan='2'>[[1olm]] is a 3 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=1OLM OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1OLM FirstGlance]. <br>
-	</td></tr><tr id='~~ligand~~'><td class="sblockLbl"><b>[[~~Ligand~~\|~~Ligands~~:]]</b></td><td class="sblockDat" id="~~ligandDat~~">~~<scene name='pdbligand=VTQ:RRR~~-~~ALPHA-TOCOPHERYLQUINONE'>VTQ</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]] 1.95Å</td></tr>
-	<tr id='~~related~~'><td class="sblockLbl"><b>[[~~Related_structure~~\|~~Related~~:]]</b></td><td class="sblockDat"><~~div style~~='~~overflow~~: ~~auto; max~~-~~height: 3em;~~'>~~[[1o6u\|1o6u]]~~</~~div~~></td></tr>	+	<tr id='ligand'><td class="sblockLbl"><b>[[Ligand\|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=VTQ:RRR-ALPHA-TOCOPHERYLQUINONE'>VTQ</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=1olm FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1olm OCA], [https://pdbe.org/1olm PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1olm RCSB], [https://www.ebi.ac.uk/pdbsum/1olm PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1olm 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=1olm FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1olm OCA], [https://pdbe.org/1olm PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1olm RCSB], [https://www.ebi.ac.uk/pdbsum/1olm PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1olm ProSAT]</span></td></tr>
	</table>		</table>
	== Function ==		== Function ==
-	[[https://www.uniprot.org/uniprot/S14L2_HUMAN S14L2_HUMAN]] Carrier protein. Binds to some hydrophobic molecules and promotes their transfer between the different cellular sites. Binds with high affinity to alpha-tocopherol. Also binds with a weaker affinity to other tocopherols and to tocotrienols. May have a transcriptional activatory activity via its association with alpha-tocopherol. Probably recognizes and binds some squalene structure, suggesting that it may regulate cholesterol biosynthesis by increasing the transfer of squalene to a metabolic active pool in the cell.	+	[https://www.uniprot.org/uniprot/S14L2_HUMAN S14L2_HUMAN] Carrier protein. Binds to some hydrophobic molecules and promotes their transfer between the different cellular sites. Binds with high affinity to alpha-tocopherol. Also binds with a weaker affinity to other tocopherols and to tocotrienols. May have a transcriptional activatory activity via its association with alpha-tocopherol. Probably recognizes and binds some squalene structure, suggesting that it may regulate cholesterol biosynthesis by increasing the transfer of squalene to a metabolic active pool in the cell.
	== Evolutionary Conservation ==		== Evolutionary Conservation ==
	[[Image:Consurf_key_small.gif\|200px\|right]]		[[Image:Consurf_key_small.gif\|200px\|right]]
Line 20:		Line 20:
	</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=1olm ConSurf].		</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=1olm ConSurf].
	<div style="clear:both"></div>		<div style="clear:both"></div>
-	<div style="background-color:#fffaf0;">
-	== Publication Abstract from PubMed ==
-	The vast majority of monomeric lipid transport in nature is performed by lipid-specific protein carriers. This class of proteins can enclose cognate lipid molecules in a hydrophobic cavity and transport them across the aqueous environment. Supernatant protein factor (SPF) is an enigmatic representative of monomeric lipid transporters belonging to the SEC14 family. SPF stimulates squalene epoxidation, a downstream step of the cholesterol biosynthetic pathway, by an unknown mechanism. Here, we present the three-dimensional crystal structure of human SPF in complex with RRR-alpha-tocopherylquinone, the major physiological oxidation product of RRR-alpha-tocopherol, at a resolution of 1.95A. The structure of the complex reveals how SPF sequesters RRR-alpha-tocopherylquinone (RRR-alpha-TQ) in its protein body and permits a comparison with the recently solved structure of human alpha-tocopherol transfer protein (alpha-TTP) in complex with RRR-alpha-tocopherol. Recent findings have shown that RRR-alpha-TQ is reduced in vivo to RRR-alpha-TQH(2), the latter has been suggested to protect low-density lipoprotein (LDL) particles from oxidation. Hence, the antioxidant function of the redox couple RRR-alpha-TQ/RRR-alpha-TQH(2) in blocking LDL oxidation may reduce cellular cholesterol uptake and thus explain how SPF upregulates cholesterol synthesis.
-
-	Supernatant protein factor in complex with RRR-alpha-tocopherylquinone: a link between oxidized Vitamin E and cholesterol biosynthesis.,Stocker A, Baumann U J Mol Biol. 2003 Sep 26;332(4):759-65. PMID:12972248<ref>PMID:12972248</ref>
-
-	From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br>
-	</div>
-	<div class="pdbe-citations 1olm" style="background-color:#fffaf0;"></div>
-	== References ==
-	<references/>
	__TOC__		__TOC__
	</StructureSection>		</StructureSection>
-	[[Category: ~~Human~~]]	+	[[Category: Homo sapiens]]
	[[Category: Large Structures]]		[[Category: Large Structures]]
-	[[Category: Baumann, U]]	+	[[Category: Baumann U]]
-	[[Category: Stocker, A]]	+	[[Category: Stocker A]]
-	~~[[Category: Activator]]~~	+
-	~~[[Category: Cholesterol biosynthesis]]~~	+
-	~~[[Category: Lipid binding protein]]~~	+
-	~~[[Category: Lipid-binding]]~~	+
-	~~[[Category: Lipid-binding protein]]~~	+
-	~~[[Category: Oxidized vitamin e]]~~	+
-	~~[[Category: Transcription regulation]]~~	+
-	~~[[Category: Transport~~]]	+

OCA at 09:58, 12 May 2021

2021-05-12T09:58:34Z

←Older revision		Revision as of 09:58, 12 May 2021
Line 3:		Line 3:
	<StructureSection load='1olm' size='340' side='right'caption='[[1olm]], [[Resolution\|resolution]] 1.95Å' scene=''>		<StructureSection load='1olm' size='340' side='right'caption='[[1olm]], [[Resolution\|resolution]] 1.95Å' scene=''>
	== Structural highlights ==		== Structural highlights ==
-	<table><tr><td colspan='2'>[[1olm]] is a 3 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=1OLM OCA]. For a <b>guided tour on the structure components</b> use [~~http~~://~~oca~~.~~weizmann.ac.il/oca-docs~~/fgij/fg.htm?mol=1OLM FirstGlance]. <br>	+	<table><tr><td colspan='2'>[[1olm]] is a 3 chain structure with sequence from [https://en.wikipedia.org/wiki/Human Human]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1OLM OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1OLM FirstGlance]. <br>
-	</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand\|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=VTQ:RRR-ALPHA-TOCOPHERYLQUINONE'>VTQ</scene></td></tr>	+	</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand\|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=VTQ:RRR-ALPHA-TOCOPHERYLQUINONE'>VTQ</scene></td></tr>
-	<tr id='related'><td class="sblockLbl"><b>[[Related_structure\|Related:]]</b></td><td class="sblockDat">[[1o6u\|1o6u]]</td></tr>	+	<tr id='related'><td class="sblockLbl"><b>[[Related_structure\|Related:]]</b></td><td class="sblockDat"><div style='overflow: auto; max-height: 3em;'>[[1o6u\|1o6u]]</div></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=1olm FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1olm OCA], [~~http~~://pdbe.org/1olm PDBe], [~~http~~://www.rcsb.org/pdb/explore.do?structureId=1olm RCSB], [~~http~~://www.ebi.ac.uk/pdbsum/1olm PDBsum], [~~http~~://prosat.h-its.org/prosat/prosatexe?pdbcode=1olm 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=1olm FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1olm OCA], [https://pdbe.org/1olm PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1olm RCSB], [https://www.ebi.ac.uk/pdbsum/1olm PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1olm ProSAT]</span></td></tr>
	</table>		</table>
	== Function ==		== Function ==
-	[[~~http~~://www.uniprot.org/uniprot/S14L2_HUMAN S14L2_HUMAN]] Carrier protein. Binds to some hydrophobic molecules and promotes their transfer between the different cellular sites. Binds with high affinity to alpha-tocopherol. Also binds with a weaker affinity to other tocopherols and to tocotrienols. May have a transcriptional activatory activity via its association with alpha-tocopherol. Probably recognizes and binds some squalene structure, suggesting that it may regulate cholesterol biosynthesis by increasing the transfer of squalene to a metabolic active pool in the cell.	+	[[https://www.uniprot.org/uniprot/S14L2_HUMAN S14L2_HUMAN]] Carrier protein. Binds to some hydrophobic molecules and promotes their transfer between the different cellular sites. Binds with high affinity to alpha-tocopherol. Also binds with a weaker affinity to other tocopherols and to tocotrienols. May have a transcriptional activatory activity via its association with alpha-tocopherol. Probably recognizes and binds some squalene structure, suggesting that it may regulate cholesterol biosynthesis by increasing the transfer of squalene to a metabolic active pool in the cell.
	== Evolutionary Conservation ==		== Evolutionary Conservation ==
	[[Image:Consurf_key_small.gif\|200px\|right]]		[[Image:Consurf_key_small.gif\|200px\|right]]

OCA at 06:51, 7 August 2019

2019-08-07T06:51:14Z

←Older revision		Revision as of 06:51, 7 August 2019
Line 1:		Line 1:

	==Supernatant Protein Factor in Complex with RRR-alpha-Tocopherylquinone: A Link between Oxidized Vitamin E and Cholesterol Biosynthesis==		==Supernatant Protein Factor in Complex with RRR-alpha-Tocopherylquinone: A Link between Oxidized Vitamin E and Cholesterol Biosynthesis==
-	<StructureSection load='1olm' size='340' side='right' caption='[[1olm]], [[Resolution\|resolution]] 1.95Å' scene=''>	+	<StructureSection load='1olm' size='340' side='right'caption='[[1olm]], [[Resolution\|resolution]] 1.95Å' scene=''>
	== Structural highlights ==		== Structural highlights ==
	<table><tr><td colspan='2'>[[1olm]] is a 3 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=1OLM OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1OLM FirstGlance]. <br>		<table><tr><td colspan='2'>[[1olm]] is a 3 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=1OLM OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1OLM FirstGlance]. <br>
Line 14:		Line 14:
	Check<jmol>		Check<jmol>
	<jmolCheckbox>		<jmolCheckbox>
-	<scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/ol/1olm_consurf.spt"</scriptWhenChecked>	+	<scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/ol/1olm_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>
Line 34:		Line 34:
	</StructureSection>		</StructureSection>
	[[Category: Human]]		[[Category: Human]]
		+	[[Category: Large Structures]]
	[[Category: Baumann, U]]		[[Category: Baumann, U]]
	[[Category: Stocker, A]]		[[Category: Stocker, A]]

OCA at 10:00, 1 November 2017

2017-11-01T10:00:41Z

←Older revision		Revision as of 10:00, 1 November 2017
Line 1:		Line 1:
-	==~~SUPERNATANT PROTEIN FACTOR IN COMPLEX WITH~~ RRR-~~ALPHA~~-~~TOCOPHERYLQUINONE~~: A ~~LINK BETWEEN OXIDIZED VITAMIN~~ E ~~AND CHOLESTEROL BIOSYNTHESIS~~==	+
		+	==Supernatant Protein Factor in Complex with RRR-alpha-Tocopherylquinone: A Link between Oxidized Vitamin E and Cholesterol Biosynthesis==
	<StructureSection load='1olm' size='340' side='right' caption='[[1olm]], [[Resolution\|resolution]] 1.95Å' scene=''>		<StructureSection load='1olm' size='340' side='right' caption='[[1olm]], [[Resolution\|resolution]] 1.95Å' scene=''>
	== Structural highlights ==		== Structural highlights ==
Line 5:		Line 6:
	</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand\|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=VTQ:RRR-ALPHA-TOCOPHERYLQUINONE'>VTQ</scene></td></tr>		</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand\|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=VTQ:RRR-ALPHA-TOCOPHERYLQUINONE'>VTQ</scene></td></tr>
	<tr id='related'><td class="sblockLbl"><b>[[Related_structure\|Related:]]</b></td><td class="sblockDat">[[1o6u\|1o6u]]</td></tr>		<tr id='related'><td class="sblockLbl"><b>[[Related_structure\|Related:]]</b></td><td class="sblockDat">[[1o6u\|1o6u]]</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=1olm FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1olm OCA], [http://pdbe.org/1olm PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1olm RCSB], [http://www.ebi.ac.uk/pdbsum/1olm PDBsum]</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=1olm FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1olm OCA], [http://pdbe.org/1olm PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1olm RCSB], [http://www.ebi.ac.uk/pdbsum/1olm PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=1olm ProSAT]</span></td></tr>
	</table>		</table>
	== Function ==		== Function ==
Line 17:		Line 18:
	<text>to colour the structure by Evolutionary Conservation</text>		<text>to colour the structure by Evolutionary Conservation</text>
	</jmolCheckbox>		</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/~~chain_selection~~.php?pdb_ID=~~2ata~~ ConSurf].	+	</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=1olm ConSurf].
	<div style="clear:both"></div>		<div style="clear:both"></div>
	<div style="background-color:#fffaf0;">		<div style="background-color:#fffaf0;">
Line 37:		Line 38:
	[[Category: Activator]]		[[Category: Activator]]
	[[Category: Cholesterol biosynthesis]]		[[Category: Cholesterol biosynthesis]]
		+	[[Category: Lipid binding protein]]
	[[Category: Lipid-binding]]		[[Category: Lipid-binding]]
	[[Category: Lipid-binding protein]]		[[Category: Lipid-binding protein]]

OCA at 14:29, 11 September 2015

2015-09-11T14:29:09Z

←Older revision		Revision as of 14:29, 11 September 2015
Line 2:		Line 2:
	<StructureSection load='1olm' size='340' side='right' caption='[[1olm]], [[Resolution\|resolution]] 1.95Å' scene=''>		<StructureSection load='1olm' size='340' side='right' caption='[[1olm]], [[Resolution\|resolution]] 1.95Å' scene=''>
	== Structural highlights ==		== Structural highlights ==
-	<table><tr><td colspan='2'>[[1olm]] is a 3 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=1OLM OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1OLM FirstGlance]. <br>	+	<table><tr><td colspan='2'>[[1olm]] is a 3 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=1OLM OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1OLM FirstGlance]. <br>
	</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand\|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=VTQ:RRR-ALPHA-TOCOPHERYLQUINONE'>VTQ</scene></td></tr>		</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand\|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=VTQ:RRR-ALPHA-TOCOPHERYLQUINONE'>VTQ</scene></td></tr>
	<tr id='related'><td class="sblockLbl"><b>[[Related_structure\|Related:]]</b></td><td class="sblockDat">[[1o6u\|1o6u]]</td></tr>		<tr id='related'><td class="sblockLbl"><b>[[Related_structure\|Related:]]</b></td><td class="sblockDat">[[1o6u\|1o6u]]</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=1olm FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1olm OCA], [http://www.rcsb.org/pdb/explore.do?structureId=1olm RCSB], [http://www.ebi.ac.uk/pdbsum/1olm PDBsum]</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=1olm FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1olm OCA], [http://pdbe.org/1olm PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1olm RCSB], [http://www.ebi.ac.uk/pdbsum/1olm PDBsum]</span></td></tr>
	</table>		</table>
	== Function ==		== Function ==
Line 27:		Line 27:
	From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br>		From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br>
	</div>		</div>
		+	<div class="pdbe-citations 1olm" style="background-color:#fffaf0;"></div>
	== References ==		== References ==
	<references/>		<references/>
	__TOC__		__TOC__
	</StructureSection>		</StructureSection>
-	[[Category: ~~Homo sapiens~~]]	+	[[Category: Human]]
	[[Category: Baumann, U]]		[[Category: Baumann, U]]
	[[Category: Stocker, A]]		[[Category: Stocker, A]]

OCA at 17:43, 25 December 2014

2014-12-25T17:43:31Z

←Older revision		Revision as of 17:43, 25 December 2014
Line 3:		Line 3:
	== Structural highlights ==		== Structural highlights ==
	<table><tr><td colspan='2'>[[1olm]] is a 3 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=1OLM OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1OLM FirstGlance]. <br>		<table><tr><td colspan='2'>[[1olm]] is a 3 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=1OLM OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1OLM FirstGlance]. <br>
-	</td></tr><tr><td class="sblockLbl"><b>[[Ligand\|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=VTQ:RRR-ALPHA-TOCOPHERYLQUINONE'>VTQ</scene><br>	+	</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand\|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=VTQ:RRR-ALPHA-TOCOPHERYLQUINONE'>VTQ</scene></td></tr>
-	<tr><td class="sblockLbl"><b>[[Related_structure\|Related:]]</b></td><td class="sblockDat">[[1o6u\|1o6u]]</td></tr>	+	<tr id='related'><td class="sblockLbl"><b>[[Related_structure\|Related:]]</b></td><td class="sblockDat">[[1o6u\|1o6u]]</td></tr>
-	<tr><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1olm FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1olm OCA], [http://www.rcsb.org/pdb/explore.do?structureId=1olm RCSB], [http://www.ebi.ac.uk/pdbsum/1olm PDBsum]</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=1olm FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1olm OCA], [http://www.rcsb.org/pdb/explore.do?structureId=1olm RCSB], [http://www.ebi.ac.uk/pdbsum/1olm PDBsum]</span></td></tr>
-	<table>	+	</table>
		+	== Function ==
		+	[[http://www.uniprot.org/uniprot/S14L2_HUMAN S14L2_HUMAN]] Carrier protein. Binds to some hydrophobic molecules and promotes their transfer between the different cellular sites. Binds with high affinity to alpha-tocopherol. Also binds with a weaker affinity to other tocopherols and to tocotrienols. May have a transcriptional activatory activity via its association with alpha-tocopherol. Probably recognizes and binds some squalene structure, suggesting that it may regulate cholesterol biosynthesis by increasing the transfer of squalene to a metabolic active pool in the cell.
	== Evolutionary Conservation ==		== Evolutionary Conservation ==
	[[Image:Consurf_key_small.gif\|200px\|right]]		[[Image:Consurf_key_small.gif\|200px\|right]]
Line 30:		Line 32:
	</StructureSection>		</StructureSection>
	[[Category: Homo sapiens]]		[[Category: Homo sapiens]]
-	[[Category: Baumann, U.]]	+	[[Category: Baumann, U]]
-	[[Category: Stocker, A.]]	+	[[Category: Stocker, A]]
	[[Category: Activator]]		[[Category: Activator]]
	[[Category: Cholesterol biosynthesis]]		[[Category: Cholesterol biosynthesis]]

OCA at 16:00, 28 September 2014

2014-09-28T16:00:41Z

←Older revision		Revision as of 16:00, 28 September 2014
Line 1:		Line 1:
-	[[~~Image:~~1olm.~~png~~\|~~left~~\|200px]]	+	==SUPERNATANT PROTEIN FACTOR IN COMPLEX WITH RRR-ALPHA-TOCOPHERYLQUINONE: A LINK BETWEEN OXIDIZED VITAMIN E AND CHOLESTEROL BIOSYNTHESIS==
		+	<StructureSection load='1olm' size='340' side='right' caption='[[1olm]], [[Resolution\|resolution]] 1.95Å' scene=''>
		+	== Structural highlights ==
		+	<table><tr><td colspan='2'>[[1olm]] is a 3 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=1OLM OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1OLM FirstGlance]. <br>
		+	</td></tr><tr><td class="sblockLbl"><b>[[Ligand\|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=VTQ:RRR-ALPHA-TOCOPHERYLQUINONE'>VTQ</scene><br>
		+	<tr><td class="sblockLbl"><b>[[Related_structure\|Related:]]</b></td><td class="sblockDat">[[1o6u\|1o6u]]</td></tr>
		+	<tr><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1olm FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1olm OCA], [http://www.rcsb.org/pdb/explore.do?structureId=1olm RCSB], [http://www.ebi.ac.uk/pdbsum/1olm PDBsum]</span></td></tr>
		+	<table>
		+	== Evolutionary Conservation ==
		+	[[Image:Consurf_key_small.gif\|200px\|right]]
		+	Check<jmol>
		+	<jmolCheckbox>
		+	<scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/ol/1olm_consurf.spt"</scriptWhenChecked>
		+	<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
		+	<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/chain_selection.php?pdb_ID=2ata ConSurf].
		+	<div style="clear:both"></div>
		+	<div style="background-color:#fffaf0;">
		+	== Publication Abstract from PubMed ==
		+	The vast majority of monomeric lipid transport in nature is performed by lipid-specific protein carriers. This class of proteins can enclose cognate lipid molecules in a hydrophobic cavity and transport them across the aqueous environment. Supernatant protein factor (SPF) is an enigmatic representative of monomeric lipid transporters belonging to the SEC14 family. SPF stimulates squalene epoxidation, a downstream step of the cholesterol biosynthetic pathway, by an unknown mechanism. Here, we present the three-dimensional crystal structure of human SPF in complex with RRR-alpha-tocopherylquinone, the major physiological oxidation product of RRR-alpha-tocopherol, at a resolution of 1.95A. The structure of the complex reveals how SPF sequesters RRR-alpha-tocopherylquinone (RRR-alpha-TQ) in its protein body and permits a comparison with the recently solved structure of human alpha-tocopherol transfer protein (alpha-TTP) in complex with RRR-alpha-tocopherol. Recent findings have shown that RRR-alpha-TQ is reduced in vivo to RRR-alpha-TQH(2), the latter has been suggested to protect low-density lipoprotein (LDL) particles from oxidation. Hence, the antioxidant function of the redox couple RRR-alpha-TQ/RRR-alpha-TQH(2) in blocking LDL oxidation may reduce cellular cholesterol uptake and thus explain how SPF upregulates cholesterol synthesis.

-	~~{{STRUCTURE_1olm\| PDB=1olm \| SCENE= }}~~	+	Supernatant protein factor in complex with RRR-alpha-tocopherylquinone: a link between oxidized Vitamin E and cholesterol biosynthesis.,Stocker A, Baumann U J Mol Biol. 2003 Sep 26;332(4):759-65. PMID:12972248<ref>PMID:12972248</ref>

-	~~===SUPERNATANT PROTEIN FACTOR IN COMPLEX WITH RRR-ALPHA-TOCOPHERYLQUINONE: A LINK BETWEEN OXIDIZED VITAMIN E AND CHOLESTEROL BIOSYNTHESIS===~~	+	From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br>
-		+	</div>
-	~~{{ABSTRACT_PUBMED_12972248}}~~	+	== References ==
-		+	<references/>
-	~~==About this Structure==~~	+	__TOC__
-	~~[[1olm]] is~~ a ~~3 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=1OLM OCA].~~	+	</StructureSection>
-		+
-	==~~Reference~~==	+
-	<~~ref group="xtra">PMID:012972248<~~/~~ref~~><~~references group="xtra"~~/>	+
	[[Category: Homo sapiens]]		[[Category: Homo sapiens]]
	[[Category: Baumann, U.]]		[[Category: Baumann, U.]]

OCA: Protected "1olm" [edit=sysop:move=sysop]

2012-12-12T22:00:16Z

Protected "1olm" [edit=sysop:move=sysop]

←Older revision

Revision as of 22:00, 12 December 2012

OCA at 22:00, 12 December 2012

2012-12-12T22:00:12Z

←Older revision		Revision as of 22:00, 12 December 2012
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-	{{Seed}}
	[[Image:1olm.png\|left\|200px]]		[[Image:1olm.png\|left\|200px]]

-	<!--
-	The line below this paragraph, containing "STRUCTURE_1olm", creates the "Structure Box" on the page.
-	You may change the PDB parameter (which sets the PDB file loaded into the applet)
-	or the SCENE parameter (which sets the initial scene displayed when the page is loaded),
-	or leave the SCENE parameter empty for the default display.
-	-->
	{{STRUCTURE_1olm\| PDB=1olm \| SCENE= }}		{{STRUCTURE_1olm\| PDB=1olm \| SCENE= }}

	===SUPERNATANT PROTEIN FACTOR IN COMPLEX WITH RRR-ALPHA-TOCOPHERYLQUINONE: A LINK BETWEEN OXIDIZED VITAMIN E AND CHOLESTEROL BIOSYNTHESIS===		===SUPERNATANT PROTEIN FACTOR IN COMPLEX WITH RRR-ALPHA-TOCOPHERYLQUINONE: A LINK BETWEEN OXIDIZED VITAMIN E AND CHOLESTEROL BIOSYNTHESIS===

-
-	<!--
-	The line below this paragraph, {{ABSTRACT_PUBMED_12972248}}, adds the Publication Abstract to the page
-	(as it appears on PubMed at http://www.pubmed.gov), where 12972248 is the PubMed ID number.
-	-->
	{{ABSTRACT_PUBMED_12972248}}		{{ABSTRACT_PUBMED_12972248}}

	==About this Structure==		==About this Structure==
-	~~1OLM~~ is a 3 ~~chains~~ structure ~~of sequences~~ 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=1OLM OCA].	+	[[1olm]] is a 3 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=1OLM OCA].

	==Reference==		==Reference==
-	<ref group="xtra">PMID:~~12972248~~</ref><references group="xtra"/>	+	<ref group="xtra">PMID:012972248</ref><references group="xtra"/>
	[[Category: Homo sapiens]]		[[Category: Homo sapiens]]
	[[Category: Baumann, U.]]		[[Category: Baumann, U.]]
Line 30:		Line 18:
	[[Category: Cholesterol biosynthesis]]		[[Category: Cholesterol biosynthesis]]
	[[Category: Lipid-binding]]		[[Category: Lipid-binding]]
		+	[[Category: Lipid-binding protein]]
	[[Category: Oxidized vitamin e]]		[[Category: Oxidized vitamin e]]
	[[Category: Transcription regulation]]		[[Category: Transcription regulation]]
	[[Category: Transport]]		[[Category: Transport]]
-
-	''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Wed Feb 18 00:33:44 2009''