2qr9 - Revision history

OCA at 11:39, 30 August 2023

2023-08-30T11:39:22Z

←Older revision		Revision as of 11:39, 30 August 2023
Line 3:		Line 3:
	<StructureSection load='2qr9' size='340' side='right'caption='[[2qr9]], [[Resolution\|resolution]] 2.00Å' scene=''>		<StructureSection load='2qr9' size='340' side='right'caption='[[2qr9]], [[Resolution\|resolution]] 2.00Å' scene=''>
	== Structural highlights ==		== Structural highlights ==
-	<table><tr><td colspan='2'>[[2qr9]] is a 4 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=2QR9 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2QR9 FirstGlance]. <br>	+	<table><tr><td colspan='2'>[[2qr9]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens] and [https://en.wikipedia.org/wiki/Mus_musculus Mus musculus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2QR9 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2QR9 FirstGlance]. <br>
-	</td></tr><tr id='~~ligand~~'><td class="sblockLbl"><b>[[~~Ligand~~\|~~Ligands~~:]]</b></td><td class="sblockDat" id="~~ligandDat~~">~~<scene name='pdbligand=HZ3:DIMETHYL+(1R,4S)~~-5,~~6-BIS(4-HYDROXYPHENYL)-7-OXABICYCLO~~[~~2.2.1~~]~~HEPTA-~~2~~,5-DIENE-2,3-DICARBOXYLATE'>HZ3</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]] 2Å</td></tr>
-	<tr id='~~related~~'><td class="sblockLbl"><b>[[~~Related_structure~~\|~~Related~~:]]</b></td><td class="sblockDat"><~~div style~~='~~overflow~~: ~~auto; max~~-~~height: 3em;'>~~[~~[2qse\|2qse]~~], ~~[[2qxm\|2qxm]]</div></td></tr>~~	+	<tr id='ligand'><td class="sblockLbl"><b>[[Ligand\|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=HZ3:DIMETHYL+(1R,4S)-5,6-BIS(4-HYDROXYPHENYL)-7-OXABICYCLO[2.2.1]HEPTA-2,5-DIENE-2,3-DICARBOXYLATE'>HZ3</scene></td></tr>
-	~~<tr id='gene~~'>~~<td class="sblockLbl"><b>[[Gene\|Gene:]]~~</b>~~</td><td class="sblockDat">ESR1, ESR, NR3A1 ([https://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'>[https://proteopedia.org/fgij/fg.htm?mol=2qr9 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2qr9 OCA], [https://pdbe.org/2qr9 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2qr9 RCSB], [https://www.ebi.ac.uk/pdbsum/2qr9 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2qr9 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=2qr9 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2qr9 OCA], [https://pdbe.org/2qr9 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2qr9 RCSB], [https://www.ebi.ac.uk/pdbsum/2qr9 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2qr9 ProSAT]</span></td></tr>
	</table>		</table>
	== Function ==		== Function ==
-	[[https://www.uniprot.org/uniprot/ESR1_HUMAN ESR1_HUMAN]] Nuclear hormone receptor. The steroid hormones and their receptors are involved in the regulation of eukaryotic gene expression and affect cellular proliferation and differentiation in target tissues. Ligand-dependent nuclear transactivation involves either direct homodimer binding to a palindromic estrogen response element (ERE) sequence or association with other DNA-binding transcription factors, such as AP-1/c-Jun, c-Fos, ATF-2, Sp1 and Sp3, to mediate ERE-independent signaling. Ligand binding induces a conformational change allowing subsequent or combinatorial association with multiprotein coactivator complexes through LXXLL motifs of their respective components. Mutual transrepression occurs between the estrogen receptor (ER) and NF-kappa-B in a cell-type specific manner. Decreases NF-kappa-B DNA-binding activity and inhibits NF-kappa-B-mediated transcription from the IL6 promoter and displace RELA/p65 and associated coregulators from the promoter. Recruited to the NF-kappa-B response element of the CCL2 and IL8 promoters and can displace CREBBP. Present with NF-kappa-B components RELA/p65 and NFKB1/p50 on ERE sequences. Can also act synergistically with NF-kappa-B to activate transcription involving respective recruitment adjacent response elements; the function involves CREBBP. Can activate the transcriptional activity of TFF1. Also mediates membrane-initiated estrogen signaling involving various kinase cascades. Isoform 3 is involved in activation of NOS3 and endothelial nitric oxide production. Isoforms lacking one or several functional domains are thought to modulate transcriptional activity by competitive ligand or DNA binding and/or heterodimerization with the full length receptor. Isoform 3 can bind to ERE and inhibit isoform 1.<ref>PMID:7651415</ref> <ref>PMID:10970861</ref> <ref>PMID:9328340</ref> <ref>PMID:10681512</ref> <ref>PMID:10816575</ref> <ref>PMID:11477071</ref> <ref>PMID:11682626</ref> <ref>PMID:15078875</ref> <ref>PMID:16043358</ref> <ref>PMID:15891768</ref> <ref>PMID:16684779</ref> <ref>PMID:18247370</ref> <ref>PMID:17932106</ref> <ref>PMID:19350539</ref> <ref>PMID:20705611</ref> <ref>PMID:21937726</ref> <ref>PMID:21330404</ref> <ref>PMID:22083956</ref>	+	[https://www.uniprot.org/uniprot/ESR1_HUMAN ESR1_HUMAN] Nuclear hormone receptor. The steroid hormones and their receptors are involved in the regulation of eukaryotic gene expression and affect cellular proliferation and differentiation in target tissues. Ligand-dependent nuclear transactivation involves either direct homodimer binding to a palindromic estrogen response element (ERE) sequence or association with other DNA-binding transcription factors, such as AP-1/c-Jun, c-Fos, ATF-2, Sp1 and Sp3, to mediate ERE-independent signaling. Ligand binding induces a conformational change allowing subsequent or combinatorial association with multiprotein coactivator complexes through LXXLL motifs of their respective components. Mutual transrepression occurs between the estrogen receptor (ER) and NF-kappa-B in a cell-type specific manner. Decreases NF-kappa-B DNA-binding activity and inhibits NF-kappa-B-mediated transcription from the IL6 promoter and displace RELA/p65 and associated coregulators from the promoter. Recruited to the NF-kappa-B response element of the CCL2 and IL8 promoters and can displace CREBBP. Present with NF-kappa-B components RELA/p65 and NFKB1/p50 on ERE sequences. Can also act synergistically with NF-kappa-B to activate transcription involving respective recruitment adjacent response elements; the function involves CREBBP. Can activate the transcriptional activity of TFF1. Also mediates membrane-initiated estrogen signaling involving various kinase cascades. Isoform 3 is involved in activation of NOS3 and endothelial nitric oxide production. Isoforms lacking one or several functional domains are thought to modulate transcriptional activity by competitive ligand or DNA binding and/or heterodimerization with the full length receptor. Isoform 3 can bind to ERE and inhibit isoform 1.<ref>PMID:7651415</ref> <ref>PMID:10970861</ref> <ref>PMID:9328340</ref> <ref>PMID:10681512</ref> <ref>PMID:10816575</ref> <ref>PMID:11477071</ref> <ref>PMID:11682626</ref> <ref>PMID:15078875</ref> <ref>PMID:16043358</ref> <ref>PMID:15891768</ref> <ref>PMID:16684779</ref> <ref>PMID:18247370</ref> <ref>PMID:17932106</ref> <ref>PMID:19350539</ref> <ref>PMID:20705611</ref> <ref>PMID:21937726</ref> <ref>PMID:21330404</ref> <ref>PMID:22083956</ref>
	== Evolutionary Conservation ==		== Evolutionary Conservation ==
	[[Image:Consurf_key_small.gif\|200px\|right]]		[[Image:Consurf_key_small.gif\|200px\|right]]
Line 37:		Line 36:
	__TOC__		__TOC__
	</StructureSection>		</StructureSection>
-	[[Category: ~~Human~~]]	+	[[Category: Homo sapiens]]
	[[Category: Large Structures]]		[[Category: Large Structures]]
-	[[Category: ~~Bruning, J B~~]]	+	[[Category: Mus musculus]]
-	[[Category: ~~Nettles, K W~~]]	+	[[Category: Bruning JB]]
-	[[Category: ~~Dna-binding]]~~	+	[[Category: Nettles KW]]
-	~~[[Category: Lipid-binding]]~~	+
-	~~[[Category: Metal-binding]]~~	+
-	~~[[Category: Nucleus]]~~	+
-	~~[[Category: Phosphorylation]]~~	+
-	~~[[Category: Protein-ligand complex]]~~	+
-	~~[[Category: Receptor]]~~	+
-	~~[[Category: Steroid-binding]]~~	+
-	~~[[Category: Transcription]]~~	+
-	~~[[Category: Transcription regulation]]~~	+
-	~~[[Category: Zinc-finger~~]]	+

OCA at 08:30, 25 June 2021

2021-06-25T08:30:26Z

←Older revision		Revision as of 08:30, 25 June 2021
Line 1:		Line 1:

	==Crystal Structure of the Estrogen Receptor Alpha Ligand Binding Domain Complexed with an Oxabicyclic Derivative Compound==		==Crystal Structure of the Estrogen Receptor Alpha Ligand Binding Domain Complexed with an Oxabicyclic Derivative Compound==
-	<StructureSection load='2qr9' size='340' side='right' caption='[[2qr9]], [[Resolution\|resolution]] 2.00Å' scene=''>	+	<StructureSection load='2qr9' size='340' side='right'caption='[[2qr9]], [[Resolution\|resolution]] 2.00Å' scene=''>
	== Structural highlights ==		== Structural highlights ==
-	<table><tr><td colspan='2'>[[2qr9]] is a 4 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=2QR9 OCA]. For a <b>guided tour on the structure components</b> use [~~http~~://~~oca~~.~~weizmann.ac.il/oca-docs~~/fgij/fg.htm?mol=2QR9 FirstGlance]. <br>	+	<table><tr><td colspan='2'>[[2qr9]] is a 4 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=2QR9 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2QR9 FirstGlance]. <br>
-	</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand\|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=HZ3:DIMETHYL+(1R,4S)-5,6-BIS(4-HYDROXYPHENYL)-7-OXABICYCLO[2.2.1]HEPTA-2,5-DIENE-2,3-DICARBOXYLATE'>HZ3</scene></td></tr>	+	</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand\|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=HZ3:DIMETHYL+(1R,4S)-5,6-BIS(4-HYDROXYPHENYL)-7-OXABICYCLO[2.2.1]HEPTA-2,5-DIENE-2,3-DICARBOXYLATE'>HZ3</scene></td></tr>
-	<tr id='related'><td class="sblockLbl"><b>[[Related_structure\|Related:]]</b></td><td class="sblockDat">[[2qse\|2qse]], [[2qxm\|2qxm]]</td></tr>	+	<tr id='related'><td class="sblockLbl"><b>[[Related_structure\|Related:]]</b></td><td class="sblockDat"><div style='overflow: auto; max-height: 3em;'>[[2qse\|2qse]], [[2qxm\|2qxm]]</div></td></tr>
-	<tr id='gene'><td class="sblockLbl"><b>[[Gene\|Gene:]]</b></td><td class="sblockDat">ESR1, ESR, NR3A1 ([~~http~~://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 HUMAN])</td></tr>	+	<tr id='gene'><td class="sblockLbl"><b>[[Gene\|Gene:]]</b></td><td class="sblockDat">ESR1, ESR, NR3A1 ([https://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=2qr9 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2qr9 OCA], [~~http~~://pdbe.org/2qr9 PDBe], [~~http~~://www.rcsb.org/pdb/explore.do?structureId=2qr9 RCSB], [~~http~~://www.ebi.ac.uk/pdbsum/2qr9 PDBsum], [~~http~~://prosat.h-its.org/prosat/prosatexe?pdbcode=2qr9 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=2qr9 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2qr9 OCA], [https://pdbe.org/2qr9 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2qr9 RCSB], [https://www.ebi.ac.uk/pdbsum/2qr9 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2qr9 ProSAT]</span></td></tr>
	</table>		</table>
	== Function ==		== Function ==
-	[[~~http~~://www.uniprot.org/uniprot/ESR1_HUMAN ESR1_HUMAN]] Nuclear hormone receptor. The steroid hormones and their receptors are involved in the regulation of eukaryotic gene expression and affect cellular proliferation and differentiation in target tissues. Ligand-dependent nuclear transactivation involves either direct homodimer binding to a palindromic estrogen response element (ERE) sequence or association with other DNA-binding transcription factors, such as AP-1/c-Jun, c-Fos, ATF-2, Sp1 and Sp3, to mediate ERE-independent signaling. Ligand binding induces a conformational change allowing subsequent or combinatorial association with multiprotein coactivator complexes through LXXLL motifs of their respective components. Mutual transrepression occurs between the estrogen receptor (ER) and NF-kappa-B in a cell-type specific manner. Decreases NF-kappa-B DNA-binding activity and inhibits NF-kappa-B-mediated transcription from the IL6 promoter and displace RELA/p65 and associated coregulators from the promoter. Recruited to the NF-kappa-B response element of the CCL2 and IL8 promoters and can displace CREBBP. Present with NF-kappa-B components RELA/p65 and NFKB1/p50 on ERE sequences. Can also act synergistically with NF-kappa-B to activate transcription involving respective recruitment adjacent response elements; the function involves CREBBP. Can activate the transcriptional activity of TFF1. Also mediates membrane-initiated estrogen signaling involving various kinase cascades. Isoform 3 is involved in activation of NOS3 and endothelial nitric oxide production. Isoforms lacking one or several functional domains are thought to modulate transcriptional activity by competitive ligand or DNA binding and/or heterodimerization with the full length receptor. Isoform 3 can bind to ERE and inhibit isoform 1.<ref>PMID:7651415</ref> <ref>PMID:10970861</ref> <ref>PMID:9328340</ref> <ref>PMID:10681512</ref> <ref>PMID:10816575</ref> <ref>PMID:11477071</ref> <ref>PMID:11682626</ref> <ref>PMID:15078875</ref> <ref>PMID:16043358</ref> <ref>PMID:15891768</ref> <ref>PMID:16684779</ref> <ref>PMID:18247370</ref> <ref>PMID:17932106</ref> <ref>PMID:19350539</ref> <ref>PMID:20705611</ref> <ref>PMID:21937726</ref> <ref>PMID:21330404</ref> <ref>PMID:22083956</ref>	+	[[https://www.uniprot.org/uniprot/ESR1_HUMAN ESR1_HUMAN]] Nuclear hormone receptor. The steroid hormones and their receptors are involved in the regulation of eukaryotic gene expression and affect cellular proliferation and differentiation in target tissues. Ligand-dependent nuclear transactivation involves either direct homodimer binding to a palindromic estrogen response element (ERE) sequence or association with other DNA-binding transcription factors, such as AP-1/c-Jun, c-Fos, ATF-2, Sp1 and Sp3, to mediate ERE-independent signaling. Ligand binding induces a conformational change allowing subsequent or combinatorial association with multiprotein coactivator complexes through LXXLL motifs of their respective components. Mutual transrepression occurs between the estrogen receptor (ER) and NF-kappa-B in a cell-type specific manner. Decreases NF-kappa-B DNA-binding activity and inhibits NF-kappa-B-mediated transcription from the IL6 promoter and displace RELA/p65 and associated coregulators from the promoter. Recruited to the NF-kappa-B response element of the CCL2 and IL8 promoters and can displace CREBBP. Present with NF-kappa-B components RELA/p65 and NFKB1/p50 on ERE sequences. Can also act synergistically with NF-kappa-B to activate transcription involving respective recruitment adjacent response elements; the function involves CREBBP. Can activate the transcriptional activity of TFF1. Also mediates membrane-initiated estrogen signaling involving various kinase cascades. Isoform 3 is involved in activation of NOS3 and endothelial nitric oxide production. Isoforms lacking one or several functional domains are thought to modulate transcriptional activity by competitive ligand or DNA binding and/or heterodimerization with the full length receptor. Isoform 3 can bind to ERE and inhibit isoform 1.<ref>PMID:7651415</ref> <ref>PMID:10970861</ref> <ref>PMID:9328340</ref> <ref>PMID:10681512</ref> <ref>PMID:10816575</ref> <ref>PMID:11477071</ref> <ref>PMID:11682626</ref> <ref>PMID:15078875</ref> <ref>PMID:16043358</ref> <ref>PMID:15891768</ref> <ref>PMID:16684779</ref> <ref>PMID:18247370</ref> <ref>PMID:17932106</ref> <ref>PMID:19350539</ref> <ref>PMID:20705611</ref> <ref>PMID:21937726</ref> <ref>PMID:21330404</ref> <ref>PMID:22083956</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>
-	<scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/qr/2qr9_consurf.spt"</scriptWhenChecked>	+	<scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/qr/2qr9_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 30:		Line 30:
	</div>		</div>
	<div class="pdbe-citations 2qr9" style="background-color:#fffaf0;"></div>		<div class="pdbe-citations 2qr9" style="background-color:#fffaf0;"></div>
		+
		+	==See Also==
		+	*[[Estrogen receptor 3D structures\|Estrogen receptor 3D structures]]
	== References ==		== References ==
	<references/>		<references/>
Line 35:		Line 38:
	</StructureSection>		</StructureSection>
	[[Category: Human]]		[[Category: Human]]
		+	[[Category: Large Structures]]
	[[Category: Bruning, J B]]		[[Category: Bruning, J B]]
	[[Category: Nettles, K W]]		[[Category: Nettles, K W]]

OCA at 07:33, 25 October 2017

2017-10-25T07:33:46Z

←Older revision		Revision as of 07:33, 25 October 2017
Line 1:		Line 1:
		+
	==Crystal Structure of the Estrogen Receptor Alpha Ligand Binding Domain Complexed with an Oxabicyclic Derivative Compound==		==Crystal Structure of the Estrogen Receptor Alpha Ligand Binding Domain Complexed with an Oxabicyclic Derivative Compound==
	<StructureSection load='2qr9' size='340' side='right' caption='[[2qr9]], [[Resolution\|resolution]] 2.00Å' scene=''>		<StructureSection load='2qr9' size='340' side='right' caption='[[2qr9]], [[Resolution\|resolution]] 2.00Å' scene=''>
Line 6:		Line 7:
	<tr id='related'><td class="sblockLbl"><b>[[Related_structure\|Related:]]</b></td><td class="sblockDat">[[2qse\|2qse]], [[2qxm\|2qxm]]</td></tr>		<tr id='related'><td class="sblockLbl"><b>[[Related_structure\|Related:]]</b></td><td class="sblockDat">[[2qse\|2qse]], [[2qxm\|2qxm]]</td></tr>
	<tr id='gene'><td class="sblockLbl"><b>[[Gene\|Gene:]]</b></td><td class="sblockDat">ESR1, ESR, NR3A1 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 HUMAN])</td></tr>		<tr id='gene'><td class="sblockLbl"><b>[[Gene\|Gene:]]</b></td><td class="sblockDat">ESR1, ESR, NR3A1 ([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=2qr9 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2qr9 OCA], [http://pdbe.org/2qr9 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=2qr9 RCSB], [http://www.ebi.ac.uk/pdbsum/2qr9 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=2qr9 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2qr9 OCA], [http://pdbe.org/2qr9 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=2qr9 RCSB], [http://www.ebi.ac.uk/pdbsum/2qr9 PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=2qr9 ProSAT]</span></td></tr>
	</table>		</table>
	== Function ==		== Function ==
Line 29:		Line 30:
	</div>		</div>
	<div class="pdbe-citations 2qr9" style="background-color:#fffaf0;"></div>		<div class="pdbe-citations 2qr9" style="background-color:#fffaf0;"></div>
-
-	==See Also==
-	*[[Estrogen receptor\|Estrogen receptor]]
	== References ==		== References ==
	<references/>		<references/>

OCA at 06:52, 8 February 2016

2016-02-08T06:52:12Z

←Older revision		Revision as of 06:52, 8 February 2016
Line 18:		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=2qr9 ConSurf].
	<div style="clear:both"></div>		<div style="clear:both"></div>
	<div style="background-color:#fffaf0;">		<div style="background-color:#fffaf0;">

OCA at 08:59, 10 September 2015

2015-09-10T08:59:45Z

←Older revision		Revision as of 08:59, 10 September 2015
Line 2:		Line 2:
	<StructureSection load='2qr9' size='340' side='right' caption='[[2qr9]], [[Resolution\|resolution]] 2.00Å' scene=''>		<StructureSection load='2qr9' size='340' side='right' caption='[[2qr9]], [[Resolution\|resolution]] 2.00Å' scene=''>
	== Structural highlights ==		== Structural highlights ==
-	<table><tr><td colspan='2'>[[2qr9]] is a 4 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=2QR9 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2QR9 FirstGlance]. <br>	+	<table><tr><td colspan='2'>[[2qr9]] is a 4 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=2QR9 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2QR9 FirstGlance]. <br>
	</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand\|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=HZ3:DIMETHYL+(1R,4S)-5,6-BIS(4-HYDROXYPHENYL)-7-OXABICYCLO[2.2.1]HEPTA-2,5-DIENE-2,3-DICARBOXYLATE'>HZ3</scene></td></tr>		</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand\|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=HZ3:DIMETHYL+(1R,4S)-5,6-BIS(4-HYDROXYPHENYL)-7-OXABICYCLO[2.2.1]HEPTA-2,5-DIENE-2,3-DICARBOXYLATE'>HZ3</scene></td></tr>
	<tr id='related'><td class="sblockLbl"><b>[[Related_structure\|Related:]]</b></td><td class="sblockDat">[[2qse\|2qse]], [[2qxm\|2qxm]]</td></tr>		<tr id='related'><td class="sblockLbl"><b>[[Related_structure\|Related:]]</b></td><td class="sblockDat">[[2qse\|2qse]], [[2qxm\|2qxm]]</td></tr>
-	<tr id='gene'><td class="sblockLbl"><b>[[Gene\|Gene:]]</b></td><td class="sblockDat">ESR1, ESR, NR3A1 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 ~~Homo sapiens~~])</td></tr>	+	<tr id='gene'><td class="sblockLbl"><b>[[Gene\|Gene:]]</b></td><td class="sblockDat">ESR1, ESR, NR3A1 ([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=2qr9 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2qr9 OCA], [http://www.rcsb.org/pdb/explore.do?structureId=2qr9 RCSB], [http://www.ebi.ac.uk/pdbsum/2qr9 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=2qr9 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2qr9 OCA], [http://pdbe.org/2qr9 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=2qr9 RCSB], [http://www.ebi.ac.uk/pdbsum/2qr9 PDBsum]</span></td></tr>
	</table>		</table>
	== Function ==		== Function ==
Line 28:		Line 28:
	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 2qr9" style="background-color:#fffaf0;"></div>

	==See Also==		==See Also==
Line 35:		Line 36:
	__TOC__		__TOC__
	</StructureSection>		</StructureSection>
-	[[Category: ~~Homo sapiens~~]]	+	[[Category: Human]]
	[[Category: Bruning, J B]]		[[Category: Bruning, J B]]
	[[Category: Nettles, K W]]		[[Category: Nettles, K W]]

OCA at 21:27, 24 December 2014

2014-12-24T21:27:01Z

←Older revision		Revision as of 21:27, 24 December 2014
Line 3:		Line 3:
	== Structural highlights ==		== Structural highlights ==
	<table><tr><td colspan='2'>[[2qr9]] is a 4 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=2QR9 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2QR9 FirstGlance]. <br>		<table><tr><td colspan='2'>[[2qr9]] is a 4 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=2QR9 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2QR9 FirstGlance]. <br>
-	</td></tr><tr><td class="sblockLbl"><b>[[Ligand\|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=HZ3:DIMETHYL+(1R,4S)-5,6-BIS(4-HYDROXYPHENYL)-7-OXABICYCLO[2.2.1]HEPTA-2,5-DIENE-2,3-DICARBOXYLATE'>HZ3</scene><br>	+	</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand\|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=HZ3:DIMETHYL+(1R,4S)-5,6-BIS(4-HYDROXYPHENYL)-7-OXABICYCLO[2.2.1]HEPTA-2,5-DIENE-2,3-DICARBOXYLATE'>HZ3</scene></td></tr>
-	<tr><td class="sblockLbl"><b>[[Related_structure\|Related:]]</b></td><td class="sblockDat">[[2qse\|2qse]], [[2qxm\|2qxm]]</td></tr>	+	<tr id='related'><td class="sblockLbl"><b>[[Related_structure\|Related:]]</b></td><td class="sblockDat">[[2qse\|2qse]], [[2qxm\|2qxm]]</td></tr>
-	<tr><td class="sblockLbl"><b>[[Gene\|Gene:]]</b></td><td class="sblockDat">ESR1, ESR, NR3A1 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 Homo sapiens])</td></tr>	+	<tr id='gene'><td class="sblockLbl"><b>[[Gene\|Gene:]]</b></td><td class="sblockDat">ESR1, ESR, NR3A1 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 Homo sapiens])</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=2qr9 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2qr9 OCA], [http://www.rcsb.org/pdb/explore.do?structureId=2qr9 RCSB], [http://www.ebi.ac.uk/pdbsum/2qr9 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=2qr9 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2qr9 OCA], [http://www.rcsb.org/pdb/explore.do?structureId=2qr9 RCSB], [http://www.ebi.ac.uk/pdbsum/2qr9 PDBsum]</span></td></tr>
-	<table>	+	</table>
		+	== Function ==
		+	[[http://www.uniprot.org/uniprot/ESR1_HUMAN ESR1_HUMAN]] Nuclear hormone receptor. The steroid hormones and their receptors are involved in the regulation of eukaryotic gene expression and affect cellular proliferation and differentiation in target tissues. Ligand-dependent nuclear transactivation involves either direct homodimer binding to a palindromic estrogen response element (ERE) sequence or association with other DNA-binding transcription factors, such as AP-1/c-Jun, c-Fos, ATF-2, Sp1 and Sp3, to mediate ERE-independent signaling. Ligand binding induces a conformational change allowing subsequent or combinatorial association with multiprotein coactivator complexes through LXXLL motifs of their respective components. Mutual transrepression occurs between the estrogen receptor (ER) and NF-kappa-B in a cell-type specific manner. Decreases NF-kappa-B DNA-binding activity and inhibits NF-kappa-B-mediated transcription from the IL6 promoter and displace RELA/p65 and associated coregulators from the promoter. Recruited to the NF-kappa-B response element of the CCL2 and IL8 promoters and can displace CREBBP. Present with NF-kappa-B components RELA/p65 and NFKB1/p50 on ERE sequences. Can also act synergistically with NF-kappa-B to activate transcription involving respective recruitment adjacent response elements; the function involves CREBBP. Can activate the transcriptional activity of TFF1. Also mediates membrane-initiated estrogen signaling involving various kinase cascades. Isoform 3 is involved in activation of NOS3 and endothelial nitric oxide production. Isoforms lacking one or several functional domains are thought to modulate transcriptional activity by competitive ligand or DNA binding and/or heterodimerization with the full length receptor. Isoform 3 can bind to ERE and inhibit isoform 1.<ref>PMID:7651415</ref> <ref>PMID:10970861</ref> <ref>PMID:9328340</ref> <ref>PMID:10681512</ref> <ref>PMID:10816575</ref> <ref>PMID:11477071</ref> <ref>PMID:11682626</ref> <ref>PMID:15078875</ref> <ref>PMID:16043358</ref> <ref>PMID:15891768</ref> <ref>PMID:16684779</ref> <ref>PMID:18247370</ref> <ref>PMID:17932106</ref> <ref>PMID:19350539</ref> <ref>PMID:20705611</ref> <ref>PMID:21937726</ref> <ref>PMID:21330404</ref> <ref>PMID:22083956</ref>
	== Evolutionary Conservation ==		== Evolutionary Conservation ==
	[[Image:Consurf_key_small.gif\|200px\|right]]		[[Image:Consurf_key_small.gif\|200px\|right]]
Line 34:		Line 36:
	</StructureSection>		</StructureSection>
	[[Category: Homo sapiens]]		[[Category: Homo sapiens]]
-	[[Category: Bruning, J B.]]	+	[[Category: Bruning, J B]]
-	[[Category: Nettles, K W.]]	+	[[Category: Nettles, K W]]
	[[Category: Dna-binding]]		[[Category: Dna-binding]]
	[[Category: Lipid-binding]]		[[Category: Lipid-binding]]

OCA at 09:20, 29 September 2014

2014-09-29T09:20:08Z

←Older revision		Revision as of 09:20, 29 September 2014
Line 1:		Line 1:
-	[[~~Image:~~2qr9.~~png~~\|~~left~~\|200px]]	+	==Crystal Structure of the Estrogen Receptor Alpha Ligand Binding Domain Complexed with an Oxabicyclic Derivative Compound==
		+	<StructureSection load='2qr9' size='340' side='right' caption='[[2qr9]], [[Resolution\|resolution]] 2.00Å' scene=''>
		+	== Structural highlights ==
		+	<table><tr><td colspan='2'>[[2qr9]] is a 4 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=2QR9 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2QR9 FirstGlance]. <br>
		+	</td></tr><tr><td class="sblockLbl"><b>[[Ligand\|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=HZ3:DIMETHYL+(1R,4S)-5,6-BIS(4-HYDROXYPHENYL)-7-OXABICYCLO[2.2.1]HEPTA-2,5-DIENE-2,3-DICARBOXYLATE'>HZ3</scene><br>
		+	<tr><td class="sblockLbl"><b>[[Related_structure\|Related:]]</b></td><td class="sblockDat">[[2qse\|2qse]], [[2qxm\|2qxm]]</td></tr>
		+	<tr><td class="sblockLbl"><b>[[Gene\|Gene:]]</b></td><td class="sblockDat">ESR1, ESR, NR3A1 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 Homo sapiens])</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=2qr9 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2qr9 OCA], [http://www.rcsb.org/pdb/explore.do?structureId=2qr9 RCSB], [http://www.ebi.ac.uk/pdbsum/2qr9 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/qr/2qr9_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 ==
		+	Our understanding of how steroid hormones regulate physiological functions has been significantly advanced by structural biology approaches. However, progress has been hampered by misfolding of the ligand binding domains in heterologous expression systems and by conformational flexibility that interferes with crystallization. Here, we show that protein folding problems that are common to steroid hormone receptors are circumvented by mutations that stabilize well-characterized conformations of the receptor. We use this approach to present the structure of an apo steroid receptor that reveals a ligand-accessible channel allowing soaking of preformed crystals. Furthermore, crystallization of different pharmacological classes of compounds allowed us to define the structural basis of NFkappaB-selective signaling through the estrogen receptor, thus revealing a unique conformation of the receptor that allows selective suppression of inflammatory gene expression. The ability to crystallize many receptor-ligand complexes with distinct pharmacophores allows one to define structural features of signaling specificity that would not be apparent in a single structure.

-	~~{{STRUCTURE_2qr9\| PDB=2qr9 \| SCENE= }}~~	+	NFkappaB selectivity of estrogen receptor ligands revealed by comparative crystallographic analyses.,Nettles KW, Bruning JB, Gil G, Nowak J, Sharma SK, Hahm JB, Kulp K, Hochberg RB, Zhou H, Katzenellenbogen JA, Katzenellenbogen BS, Kim Y, Joachmiak A, Greene GL Nat Chem Biol. 2008 Apr;4(4):241-7. Epub 2008 Mar 16. PMID:18344977<ref>PMID:18344977</ref>

-	~~===Crystal Structure~~ of the ~~Estrogen Receptor Alpha Ligand Binding Domain Complexed with an Oxabicyclic Derivative Compound===~~	+	From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br>
-		+	</div>
-	~~{{ABSTRACT_PUBMED_18344977}}~~	+
-		+
-	~~==About this Structure==~~	+
-	~~[[2qr9]] is a 4 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=2QR9 OCA].~~	+

	==See Also==		==See Also==
	*[[Estrogen receptor\|Estrogen receptor]]		*[[Estrogen receptor\|Estrogen receptor]]
-		+	== References ==
-	==~~Reference~~==	+	<references/>
-	<~~ref group="xtra">PMID:018344977<~~/~~ref~~><~~references group="xtra"~~/>	+	__TOC__
		+	</StructureSection>
	[[Category: Homo sapiens]]		[[Category: Homo sapiens]]
	[[Category: Bruning, J B.]]		[[Category: Bruning, J B.]]

OCA at 09:18, 20 October 2012

2012-10-20T09:18:17Z

←Older revision		Revision as of 09:18, 20 October 2012
Line 8:		Line 8:

	==About this Structure==		==About this Structure==
-	[[2qr9]] is a 4 chain structure ~~of [[Estrogen receptor]]~~ 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=2QR9 OCA].	+	[[2qr9]] is a 4 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=2QR9 OCA].

	==See Also==		==See Also==

OCA: Protected "2qr9" [edit=sysop:move=sysop]

2012-07-25T22:23:52Z

Protected "2qr9" [edit=sysop:move=sysop]

←Older revision

Revision as of 22:23, 25 July 2012

OCA at 22:23, 25 July 2012

2012-07-25T22:23:50Z

←Older revision		Revision as of 22:23, 25 July 2012
Line 1:		Line 1:
-	{{Seed}}
	[[Image:2qr9.png\|left\|200px]]		[[Image:2qr9.png\|left\|200px]]

-	<!--
-	The line below this paragraph, containing "STRUCTURE_2qr9", 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_2qr9\| PDB=2qr9 \| SCENE= }}		{{STRUCTURE_2qr9\| PDB=2qr9 \| SCENE= }}

	===Crystal Structure of the Estrogen Receptor Alpha Ligand Binding Domain Complexed with an Oxabicyclic Derivative Compound===		===Crystal Structure of the Estrogen Receptor Alpha Ligand Binding Domain Complexed with an Oxabicyclic Derivative Compound===

-
-	<!--
-	The line below this paragraph, {{ABSTRACT_PUBMED_18344977}}, adds the Publication Abstract to the page
-	(as it appears on PubMed at http://www.pubmed.gov), where 18344977 is the PubMed ID number.
-	-->
	{{ABSTRACT_PUBMED_18344977}}		{{ABSTRACT_PUBMED_18344977}}

	==About this Structure==		==About this Structure==
-	~~2QR9~~ is a 4 ~~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=2QR9 OCA].	+	[[2qr9]] is a 4 chain structure of [[Estrogen receptor]] 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=2QR9 OCA].
		+
		+	==See Also==
		+	*[[Estrogen receptor\|Estrogen receptor]]

	==Reference==		==Reference==
-	<ref group="xtra">PMID:~~18344977~~</ref><references group="xtra"/>	+	<ref group="xtra">PMID:018344977</ref><references group="xtra"/>
	[[Category: Homo sapiens]]		[[Category: Homo sapiens]]
	[[Category: Bruning, J B.]]		[[Category: Bruning, J B.]]
	[[Category: Nettles, K W.]]		[[Category: Nettles, K W.]]
-	[[Category: Alternative splicing]]
	[[Category: Dna-binding]]		[[Category: Dna-binding]]
	[[Category: Lipid-binding]]		[[Category: Lipid-binding]]
Line 33:		Line 23:
	[[Category: Nucleus]]		[[Category: Nucleus]]
	[[Category: Phosphorylation]]		[[Category: Phosphorylation]]
-	[[Category: Polymorphism]]
	[[Category: Protein-ligand complex]]		[[Category: Protein-ligand complex]]
	[[Category: Receptor]]		[[Category: Receptor]]
Line 39:		Line 28:
	[[Category: Transcription]]		[[Category: Transcription]]
	[[Category: Transcription regulation]]		[[Category: Transcription regulation]]
-	[[Category: Zinc]]
	[[Category: Zinc-finger]]		[[Category: Zinc-finger]]
-
-	''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Feb 16 19:57:54 2009''