3udt - Revision history

OCA at 10:21, 1 March 2024

OCA — Fri, 01 Mar 2024 10:21:20 GMT

←Older revision		Revision as of 10:21, 1 March 2024
Line 3:		Line 3:
	<StructureSection load='3udt' size='340' side='right'caption='[[3udt]], [[Resolution\|resolution]] 3.10Å' scene=''>		<StructureSection load='3udt' size='340' side='right'caption='[[3udt]], [[Resolution\|resolution]] 3.10Å' scene=''>
	== Structural highlights ==		== Structural highlights ==
-	<table><tr><td colspan='2'>[[3udt]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/~~Arath Arath~~]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3UDT OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3UDT FirstGlance]. <br>	+	<table><tr><td colspan='2'>[[3udt]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Arabidopsis_thaliana Arabidopsis thaliana]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3UDT OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3UDT FirstGlance]. <br>
-	</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand\|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=5MY:MYO-INOSITOL-(1,3,4,5,6)-PENTAKISPHOSPHATE'>5MY</scene>, <scene name='pdbligand=ADP:ADENOSINE-5-DIPHOSPHATE'>ADP</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</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]] 3.1Å</td></tr>
-	~~<tr id='related'><td class="sblockLbl"><b>[[Related_structure\|Related:]]</b></td><td class="sblockDat"><div style='overflow: auto; max-height: 3em;'>[[3uds\|3uds]]</div></td></tr>~~	+	<tr id='ligand'><td class="sblockLbl"><b>[[Ligand\|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=5MY:MYO-INOSITOL-(1,3,4,5,6)-PENTAKISPHOSPHATE'>5MY</scene>, <scene name='pdbligand=ADP:ADENOSINE-5-DIPHOSPHATE'>ADP</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></td></tr>
-	<tr id='gene'><td class="sblockLbl"><b>[[Gene\|Gene:]]</b></td><td class="sblockDat">At5g42810, IPK1, MJB21.19 ([https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=3702 ARATH])</td></tr>	+
-	<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[https://en.wikipedia.org/wiki/Inositol-pentakisphosphate_2-kinase Inositol-pentakisphosphate 2-kinase], with EC number [https://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.7.1.158 2.7.1.158] </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=3udt FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3udt OCA], [https://pdbe.org/3udt PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3udt RCSB], [https://www.ebi.ac.uk/pdbsum/3udt PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3udt 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=3udt FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3udt OCA], [https://pdbe.org/3udt PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3udt RCSB], [https://www.ebi.ac.uk/pdbsum/3udt PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3udt ProSAT]</span></td></tr>
	</table>		</table>
	== Function ==		== Function ==
-	[[https://www.uniprot.org/uniprot/IPPK_ARATH IPPK_ARATH]] Phosphorylates Ins(1,3,4,5,6)P5 at position 2 to form Ins(1,2,3,4,5,6)P6 (InsP6 or phytate). Phytate is a regulator of intracellular signaling, a highly abundant animal antinutrient, and a phosphate store in plant seeds. Also phosphorylates Ins(1,3,4,6)P4 and Ins(1,4,5,6)P4 to produce Ins(1,2,3,4,6)P5 and Ins(1,2,4,5,6)P5.<ref>PMID:16107538</ref> <ref>PMID:16223361</ref>	+	[https://www.uniprot.org/uniprot/IPPK_ARATH IPPK_ARATH] Phosphorylates Ins(1,3,4,5,6)P5 at position 2 to form Ins(1,2,3,4,5,6)P6 (InsP6 or phytate). Phytate is a regulator of intracellular signaling, a highly abundant animal antinutrient, and a phosphate store in plant seeds. Also phosphorylates Ins(1,3,4,6)P4 and Ins(1,4,5,6)P4 to produce Ins(1,2,3,4,6)P5 and Ins(1,2,4,5,6)P5.<ref>PMID:16107538</ref> <ref>PMID:16223361</ref>
-	~~<div style="background-color:#fffaf0;">~~	+
-	~~== Publication Abstract from PubMed ==~~	+
-	Inositol phosphate kinases (IPKs) sequentially phosphorylate inositol phosphates (IPs) on their inositol rings to yield an array of signaling molecules. IPKs must possess the ability to recognize their physiological substrates from among a pool of over 30 cellular IPs that differ in numbers and positions of phosphates. Crystal structures from IPK subfamilies have revealed structural determinants for IP discrimination, which vary considerably between IPKs. However, recent structures of inositol 1,3,4,5,6-pentakisphosphate 2-kinase (IPK1) did not reveal how IPK1 selectively recognizes its physiological substrate, IP5, while excluding others. Here, we report that limited proteolysis has revealed the presence of multiple conformational states in the IPK1 catalytic cycle, with notable protection from protease only in the presence of IP. Further, a 3.1 A crystal structure of IPK1 bound to ADP in the absence of IP revealed decreased order in residues 110-140 within the N-lobe of the kinase compared to structures in which IP is bound. Using this solution and crystallographic data, we propose a model for recognition of IP substrate by IPK1 wherein phosphate groups at the 4-, 5- and 6-positions are recognized initially by the C-lobe with subsequent interaction of the 1-position phosphate by Arg130 that stabilizes this residue and the N-lobe. This model explains how IPK1 can be highly specific for a single IP substrate by linking its interactions with substrate phosphate groups to the stabilization of the N- and C-lobes and kinase activation.	+
-		+
-	Inositol phosphate-induced stabilization of inositol 1,3,4,5,6-pentakisphosphate 2-kinase and its role in substrate specificity.,Gosein V, Leung TF, Krajden O, Miller GJ Protein Sci. 2012 Feb 23. doi: 10.1002/pro.2049. PMID:22362712<ref>PMID:22362712</ref>	+
-		+
-	~~From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br>~~	+
-	~~</div>~~	+
-	~~<div class="pdbe-citations 3udt" style="background-color:#fffaf0;"></div~~>	+
	== References ==		== References ==
	<references/>		<references/>
	__TOC__		__TOC__
	</StructureSection>		</StructureSection>
-	[[Category: ~~Arath]]~~	+	[[Category: Arabidopsis thaliana]]
-	~~[[Category: Inositol-pentakisphosphate 2-kinase~~]]	+
	[[Category: Large Structures]]		[[Category: Large Structures]]
-	[[Category: Gosein, V]]	+	[[Category: Gosein V]]
-	[[Category: Krajden, O]]	+	[[Category: Krajden O]]
-	[[Category: Leung, T F]]	+	[[Category: Leung T-F]]
-	[[Category: Miller~~, G J]]~~	+	[[Category: Miller GJ]]
-	~~[[Category: Atipk1]]~~	+
-	~~[[Category: Inositol]]~~	+
-	~~[[Category: Ins5p 2-k]]~~	+
-	~~[[Category: Ip5 2-k]]~~	+
-	~~[[Category: Ipk]]~~	+
-	~~[[Category: Polyphosphate kinase]]~~	+
-	~~[[Category: Transferase~~]]	+

OCA at 06:09, 13 July 2022

OCA — Wed, 13 Jul 2022 06:09:10 GMT

←Older revision		Revision as of 06:09, 13 July 2022
Line 1:		Line 1:

	==Inositol 1,3,4,5,6-pentakisphosphate 2-kinase from A. thaliana in complex with ADP and IP5.==		==Inositol 1,3,4,5,6-pentakisphosphate 2-kinase from A. thaliana in complex with ADP and IP5.==
-	<StructureSection load='3udt' size='340' side='right' caption='[[3udt]], [[Resolution\|resolution]] 3.10Å' scene=''>	+	<StructureSection load='3udt' size='340' side='right'caption='[[3udt]], [[Resolution\|resolution]] 3.10Å' scene=''>
	== Structural highlights ==		== Structural highlights ==
-	<table><tr><td colspan='2'>[[3udt]] is a 2 chain structure with sequence from [~~http~~://en.wikipedia.org/wiki/Arath Arath]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3UDT OCA]. For a <b>guided tour on the structure components</b> use [~~http~~://~~oca~~.~~weizmann.ac.il/oca-docs~~/fgij/fg.htm?mol=3UDT FirstGlance]. <br>	+	<table><tr><td colspan='2'>[[3udt]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Arath Arath]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3UDT OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3UDT FirstGlance]. <br>
-	</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand\|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=5MY:MYO-INOSITOL-(1,3,4,5,6)-PENTAKISPHOSPHATE'>5MY</scene>, <scene name='pdbligand=ADP:ADENOSINE-5-DIPHOSPHATE'>ADP</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></td></tr>	+	</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand\|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=5MY:MYO-INOSITOL-(1,3,4,5,6)-PENTAKISPHOSPHATE'>5MY</scene>, <scene name='pdbligand=ADP:ADENOSINE-5-DIPHOSPHATE'>ADP</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></td></tr>
-	<tr id='related'><td class="sblockLbl"><b>[[Related_structure\|Related:]]</b></td><td class="sblockDat">[[3uds\|3uds]]</td></tr>	+	<tr id='related'><td class="sblockLbl"><b>[[Related_structure\|Related:]]</b></td><td class="sblockDat"><div style='overflow: auto; max-height: 3em;'>[[3uds\|3uds]]</div></td></tr>
-	<tr id='gene'><td class="sblockLbl"><b>[[Gene\|Gene:]]</b></td><td class="sblockDat">At5g42810, IPK1, MJB21.19 ([~~http~~://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=3702 ARATH])</td></tr>	+	<tr id='gene'><td class="sblockLbl"><b>[[Gene\|Gene:]]</b></td><td class="sblockDat">At5g42810, IPK1, MJB21.19 ([https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=3702 ARATH])</td></tr>
-	<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[~~http~~://en.wikipedia.org/wiki/Inositol-pentakisphosphate_2-kinase Inositol-pentakisphosphate 2-kinase], with EC number [~~http~~://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.7.1.158 2.7.1.158] </span></td></tr>	+	<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[https://en.wikipedia.org/wiki/Inositol-pentakisphosphate_2-kinase Inositol-pentakisphosphate 2-kinase], with EC number [https://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.7.1.158 2.7.1.158] </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=3udt FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3udt OCA], [~~http~~://pdbe.org/3udt PDBe], [~~http~~://www.rcsb.org/pdb/explore.do?structureId=3udt RCSB], [~~http~~://www.ebi.ac.uk/pdbsum/3udt PDBsum], [~~http~~://prosat.h-its.org/prosat/prosatexe?pdbcode=3udt 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=3udt FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3udt OCA], [https://pdbe.org/3udt PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3udt RCSB], [https://www.ebi.ac.uk/pdbsum/3udt PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3udt ProSAT]</span></td></tr>
	</table>		</table>
	== Function ==		== Function ==
-	[[~~http~~://www.uniprot.org/uniprot/IPPK_ARATH IPPK_ARATH]] Phosphorylates Ins(1,3,4,5,6)P5 at position 2 to form Ins(1,2,3,4,5,6)P6 (InsP6 or phytate). Phytate is a regulator of intracellular signaling, a highly abundant animal antinutrient, and a phosphate store in plant seeds. Also phosphorylates Ins(1,3,4,6)P4 and Ins(1,4,5,6)P4 to produce Ins(1,2,3,4,6)P5 and Ins(1,2,4,5,6)P5.<ref>PMID:16107538</ref> <ref>PMID:16223361</ref>	+	[[https://www.uniprot.org/uniprot/IPPK_ARATH IPPK_ARATH]] Phosphorylates Ins(1,3,4,5,6)P5 at position 2 to form Ins(1,2,3,4,5,6)P6 (InsP6 or phytate). Phytate is a regulator of intracellular signaling, a highly abundant animal antinutrient, and a phosphate store in plant seeds. Also phosphorylates Ins(1,3,4,6)P4 and Ins(1,4,5,6)P4 to produce Ins(1,2,3,4,6)P5 and Ins(1,2,4,5,6)P5.<ref>PMID:16107538</ref> <ref>PMID:16223361</ref>
	<div style="background-color:#fffaf0;">		<div style="background-color:#fffaf0;">
	== Publication Abstract from PubMed ==		== Publication Abstract from PubMed ==
Line 27:		Line 27:
	[[Category: Arath]]		[[Category: Arath]]
	[[Category: Inositol-pentakisphosphate 2-kinase]]		[[Category: Inositol-pentakisphosphate 2-kinase]]
		+	[[Category: Large Structures]]
	[[Category: Gosein, V]]		[[Category: Gosein, V]]
	[[Category: Krajden, O]]		[[Category: Krajden, O]]

OCA at 17:12, 4 August 2016

OCA — Thu, 04 Aug 2016 17:12:48 GMT

←Older revision		Revision as of 17:12, 4 August 2016
Line 1:		Line 1:
		+
	==Inositol 1,3,4,5,6-pentakisphosphate 2-kinase from A. thaliana in complex with ADP and IP5.==		==Inositol 1,3,4,5,6-pentakisphosphate 2-kinase from A. thaliana in complex with ADP and IP5.==
	<StructureSection load='3udt' size='340' side='right' caption='[[3udt]], [[Resolution\|resolution]] 3.10Å' scene=''>		<StructureSection load='3udt' size='340' side='right' caption='[[3udt]], [[Resolution\|resolution]] 3.10Å' scene=''>
	== Structural highlights ==		== Structural highlights ==
-	<table><tr><td colspan='2'>[[3udt]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/~~Arabidopsis_thaliana Arabidopsis thaliana~~]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3UDT OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3UDT FirstGlance]. <br>	+	<table><tr><td colspan='2'>[[3udt]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Arath Arath]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3UDT OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3UDT FirstGlance]. <br>
	</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand\|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=5MY:MYO-INOSITOL-(1,3,4,5,6)-PENTAKISPHOSPHATE'>5MY</scene>, <scene name='pdbligand=ADP:ADENOSINE-5-DIPHOSPHATE'>ADP</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></td></tr>		</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand\|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=5MY:MYO-INOSITOL-(1,3,4,5,6)-PENTAKISPHOSPHATE'>5MY</scene>, <scene name='pdbligand=ADP:ADENOSINE-5-DIPHOSPHATE'>ADP</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></td></tr>
	<tr id='related'><td class="sblockLbl"><b>[[Related_structure\|Related:]]</b></td><td class="sblockDat">[[3uds\|3uds]]</td></tr>		<tr id='related'><td class="sblockLbl"><b>[[Related_structure\|Related:]]</b></td><td class="sblockDat">[[3uds\|3uds]]</td></tr>
-	<tr id='gene'><td class="sblockLbl"><b>[[Gene\|Gene:]]</b></td><td class="sblockDat">At5g42810, IPK1, MJB21.19 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=3702 ~~Arabidopsis thaliana~~])</td></tr>	+	<tr id='gene'><td class="sblockLbl"><b>[[Gene\|Gene:]]</b></td><td class="sblockDat">At5g42810, IPK1, MJB21.19 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=3702 ARATH])</td></tr>
	<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Inositol-pentakisphosphate_2-kinase Inositol-pentakisphosphate 2-kinase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.7.1.158 2.7.1.158] </span></td></tr>		<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Inositol-pentakisphosphate_2-kinase Inositol-pentakisphosphate 2-kinase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.7.1.158 2.7.1.158] </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=3udt FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3udt OCA], [http://www.rcsb.org/pdb/explore.do?structureId=3udt RCSB], [http://www.ebi.ac.uk/pdbsum/3udt 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=3udt FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3udt OCA], [http://pdbe.org/3udt PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=3udt RCSB], [http://www.ebi.ac.uk/pdbsum/3udt PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=3udt ProSAT]</span></td></tr>
	</table>		</table>
	== Function ==		== Function ==
Line 19:		Line 20:
	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 3udt" style="background-color:#fffaf0;"></div>
	== References ==		== References ==
	<references/>		<references/>
	__TOC__		__TOC__
	</StructureSection>		</StructureSection>
-	[[Category: ~~Arabidopsis thaliana~~]]	+	[[Category: Arath]]
	[[Category: Inositol-pentakisphosphate 2-kinase]]		[[Category: Inositol-pentakisphosphate 2-kinase]]
	[[Category: Gosein, V]]		[[Category: Gosein, V]]

OCA at 17:25, 24 December 2014

OCA — Wed, 24 Dec 2014 17:25:47 GMT

←Older revision		Revision as of 17:25, 24 December 2014
Line 3:		Line 3:
	== Structural highlights ==		== Structural highlights ==
	<table><tr><td colspan='2'>[[3udt]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Arabidopsis_thaliana Arabidopsis thaliana]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3UDT OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3UDT FirstGlance]. <br>		<table><tr><td colspan='2'>[[3udt]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Arabidopsis_thaliana Arabidopsis thaliana]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3UDT OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3UDT FirstGlance]. <br>
-	</td></tr><tr><td class="sblockLbl"><b>[[Ligand\|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=5MY:MYO-INOSITOL-(1,3,4,5,6)-PENTAKISPHOSPHATE'>5MY</scene>, <scene name='pdbligand=ADP:ADENOSINE-5-DIPHOSPHATE'>ADP</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene><br>	+	</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand\|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=5MY:MYO-INOSITOL-(1,3,4,5,6)-PENTAKISPHOSPHATE'>5MY</scene>, <scene name='pdbligand=ADP:ADENOSINE-5-DIPHOSPHATE'>ADP</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></td></tr>
-	<tr><td class="sblockLbl"><b>[[Related_structure\|Related:]]</b></td><td class="sblockDat">[[3uds\|3uds]]</td></tr>	+	<tr id='related'><td class="sblockLbl"><b>[[Related_structure\|Related:]]</b></td><td class="sblockDat">[[3uds\|3uds]]</td></tr>
-	<tr><td class="sblockLbl"><b>[[Gene\|Gene:]]</b></td><td class="sblockDat">At5g42810, IPK1, MJB21.19 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=3702 Arabidopsis thaliana])</td></tr>	+	<tr id='gene'><td class="sblockLbl"><b>[[Gene\|Gene:]]</b></td><td class="sblockDat">At5g42810, IPK1, MJB21.19 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=3702 Arabidopsis thaliana])</td></tr>
-	<tr><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Inositol-pentakisphosphate_2-kinase Inositol-pentakisphosphate 2-kinase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.7.1.158 2.7.1.158] </span></td></tr>	+	<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Inositol-pentakisphosphate_2-kinase Inositol-pentakisphosphate 2-kinase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.7.1.158 2.7.1.158] </span></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=3udt FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3udt OCA], [http://www.rcsb.org/pdb/explore.do?structureId=3udt RCSB], [http://www.ebi.ac.uk/pdbsum/3udt 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=3udt FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3udt OCA], [http://www.rcsb.org/pdb/explore.do?structureId=3udt RCSB], [http://www.ebi.ac.uk/pdbsum/3udt PDBsum]</span></td></tr>
-	<table>	+	</table>
		+	== Function ==
		+	[[http://www.uniprot.org/uniprot/IPPK_ARATH IPPK_ARATH]] Phosphorylates Ins(1,3,4,5,6)P5 at position 2 to form Ins(1,2,3,4,5,6)P6 (InsP6 or phytate). Phytate is a regulator of intracellular signaling, a highly abundant animal antinutrient, and a phosphate store in plant seeds. Also phosphorylates Ins(1,3,4,6)P4 and Ins(1,4,5,6)P4 to produce Ins(1,2,3,4,6)P5 and Ins(1,2,4,5,6)P5.<ref>PMID:16107538</ref> <ref>PMID:16223361</ref>
	<div style="background-color:#fffaf0;">		<div style="background-color:#fffaf0;">
	== Publication Abstract from PubMed ==		== Publication Abstract from PubMed ==
Line 15:		Line 17:
	Inositol phosphate-induced stabilization of inositol 1,3,4,5,6-pentakisphosphate 2-kinase and its role in substrate specificity.,Gosein V, Leung TF, Krajden O, Miller GJ Protein Sci. 2012 Feb 23. doi: 10.1002/pro.2049. PMID:22362712<ref>PMID:22362712</ref>		Inositol phosphate-induced stabilization of inositol 1,3,4,5,6-pentakisphosphate 2-kinase and its role in substrate specificity.,Gosein V, Leung TF, Krajden O, Miller GJ Protein Sci. 2012 Feb 23. doi: 10.1002/pro.2049. PMID:22362712<ref>PMID:22362712</ref>

-	From ~~MEDLINEÂ®~~/~~PubMedÂ®~~, 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>
	== References ==		== References ==
Line 23:		Line 25:
	[[Category: Arabidopsis thaliana]]		[[Category: Arabidopsis thaliana]]
	[[Category: Inositol-pentakisphosphate 2-kinase]]		[[Category: Inositol-pentakisphosphate 2-kinase]]
-	[[Category: Gosein, V.]]	+	[[Category: Gosein, V]]
-	[[Category: Krajden, O.]]	+	[[Category: Krajden, O]]
-	[[Category: Leung, T F.]]	+	[[Category: Leung, T F]]
-	[[Category: Miller, G J.]]	+	[[Category: Miller, G J]]
	[[Category: Atipk1]]		[[Category: Atipk1]]
	[[Category: Inositol]]		[[Category: Inositol]]

OCA at 06:01, 5 June 2014

OCA — Thu, 05 Jun 2014 06:01:24 GMT

←Older revision		Revision as of 06:01, 5 June 2014
Line 1:		Line 1:
-	[[~~Image:~~3udt.~~png~~\|~~left~~\|~~200px~~]]	+	==Inositol 1,3,4,5,6-pentakisphosphate 2-kinase from A. thaliana in complex with ADP and IP5.==
		+	<StructureSection load='3udt' size='340' side='right' caption='[[3udt]], [[Resolution\|resolution]] 3.10Å' scene=''>
		+	== Structural highlights ==
		+	<table><tr><td colspan='2'>[[3udt]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Arabidopsis_thaliana Arabidopsis thaliana]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3UDT OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3UDT FirstGlance]. <br>
		+	</td></tr><tr><td class="sblockLbl"><b>[[Ligand\|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=5MY:MYO-INOSITOL-(1,3,4,5,6)-PENTAKISPHOSPHATE'>5MY</scene>, <scene name='pdbligand=ADP:ADENOSINE-5-DIPHOSPHATE'>ADP</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene><br>
		+	<tr><td class="sblockLbl"><b>[[Related_structure\|Related:]]</b></td><td class="sblockDat">[[3uds\|3uds]]</td></tr>
		+	<tr><td class="sblockLbl"><b>[[Gene\|Gene:]]</b></td><td class="sblockDat">At5g42810, IPK1, MJB21.19 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=3702 Arabidopsis thaliana])</td></tr>
		+	<tr><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Inositol-pentakisphosphate_2-kinase Inositol-pentakisphosphate 2-kinase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.7.1.158 2.7.1.158] </span></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=3udt FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3udt OCA], [http://www.rcsb.org/pdb/explore.do?structureId=3udt RCSB], [http://www.ebi.ac.uk/pdbsum/3udt PDBsum]</span></td></tr>
		+	<table>
		+	<div style="background-color:#fffaf0;">
		+	== Publication Abstract from PubMed ==
		+	Inositol phosphate kinases (IPKs) sequentially phosphorylate inositol phosphates (IPs) on their inositol rings to yield an array of signaling molecules. IPKs must possess the ability to recognize their physiological substrates from among a pool of over 30 cellular IPs that differ in numbers and positions of phosphates. Crystal structures from IPK subfamilies have revealed structural determinants for IP discrimination, which vary considerably between IPKs. However, recent structures of inositol 1,3,4,5,6-pentakisphosphate 2-kinase (IPK1) did not reveal how IPK1 selectively recognizes its physiological substrate, IP5, while excluding others. Here, we report that limited proteolysis has revealed the presence of multiple conformational states in the IPK1 catalytic cycle, with notable protection from protease only in the presence of IP. Further, a 3.1 A crystal structure of IPK1 bound to ADP in the absence of IP revealed decreased order in residues 110-140 within the N-lobe of the kinase compared to structures in which IP is bound. Using this solution and crystallographic data, we propose a model for recognition of IP substrate by IPK1 wherein phosphate groups at the 4-, 5- and 6-positions are recognized initially by the C-lobe with subsequent interaction of the 1-position phosphate by Arg130 that stabilizes this residue and the N-lobe. This model explains how IPK1 can be highly specific for a single IP substrate by linking its interactions with substrate phosphate groups to the stabilization of the N- and C-lobes and kinase activation.

-	<!--	+	Inositol phosphate-induced stabilization of inositol 1,3,4,5,6-pentakisphosphate 2-kinase and its role in substrate specificity.,Gosein V, Leung TF, Krajden O, Miller GJ Protein Sci. 2012 Feb 23. doi: 10.1002/pro.2049. PMID:22362712<ref>PMID:22362712</ref>
-	~~The line below this paragraph~~, ~~containing "STRUCTURE_3udt"~~, ~~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_3udt\| PDB=3udt \| SCENE= }}~~	+

-	~~===Inositol 1~~,~~3,4,5,6-pentakisphosphate 2-kinase from A. thaliana in complex with ADP and IP5.===~~	+	From MEDLINEÂ®/PubMedÂ®, a database of the U.S. National Library of Medicine.<br>
-		+	</div>
-		+	== References ==
-	~~<!--~~	+	<references/>
-	~~The line below this paragraph, {{ABSTRACT_PUBMED_22362712}}, adds~~ the ~~Publication Abstract to the page~~	+	__TOC__
-	~~(as it appears on PubMed at http://www~~.~~pubmed~~.~~gov), where 22362712 is the PubMed ID number~~.	+	</StructureSection>
-	-->	+
-	~~{{ABSTRACT_PUBMED_22362712}}~~	+
-		+
-	~~==About this Structure==~~	+
-	~~[[3udt]] is a 2 chain structure with sequence from [http:~~/~~/en.wikipedia.org/wiki/Arabidopsis_thaliana Arabidopsis thaliana]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3UDT OCA].~~	+
-		+
-	==~~Reference~~==	+
-	<~~ref group="xtra">PMID:022362712<~~/~~ref~~><~~references group="xtra"~~/>	+
	[[Category: Arabidopsis thaliana]]		[[Category: Arabidopsis thaliana]]
	[[Category: Inositol-pentakisphosphate 2-kinase]]		[[Category: Inositol-pentakisphosphate 2-kinase]]

OCA at 08:15, 9 May 2012

OCA — Wed, 09 May 2012 08:15:08 GMT

←Older revision		Revision as of 08:15, 9 May 2012
Line 1:		Line 1:
-	[[Image:3udt.~~jpg~~\|left\|200px]]	+	[[Image:3udt.png\|left\|200px]]

	<!--		<!--

OCA at 06:31, 14 March 2012

OCA — Wed, 14 Mar 2012 06:31:29 GMT

←Older revision		Revision as of 06:31, 14 March 2012
Line 1:		Line 1:
-	~~'''Unreleased structure'''~~	+	[[Image:3udt.jpg\|left\|200px]]

-	The ~~entry 3udt~~ is ~~ON HOLD~~ ~~until Paper Publication~~	+	<!--
		+	The line below this paragraph, containing "STRUCTURE_3udt", 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_3udt\| PDB=3udt \| SCENE= }}

-	~~Authors: Gosein~~, V., ~~Leung~~, T.-~~F., Krajden, O., Miller, G~~.J.	+	===Inositol 1,3,4,5,6-pentakisphosphate 2-kinase from A. thaliana in complex with ADP and IP5.===

-	~~Description: Inositol 1~~,3,~~4,5~~,6-pentakisphosphate 2-kinase ~~from A~~. ~~thaliana in complex with ADP and IP5~~.	+
		+	<!--
		+	The line below this paragraph, {{ABSTRACT_PUBMED_22362712}}, adds the Publication Abstract to the page
		+	(as it appears on PubMed at http://www.pubmed.gov), where 22362712 is the PubMed ID number.
		+	-->
		+	{{ABSTRACT_PUBMED_22362712}}
		+
		+	==About this Structure==
		+	[[3udt]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Arabidopsis_thaliana Arabidopsis thaliana]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3UDT OCA].
		+
		+	==Reference==
		+	<ref group="xtra">PMID:022362712</ref><references group="xtra"/>
		+	[[Category: Arabidopsis thaliana]]
		+	[[Category: Inositol-pentakisphosphate 2-kinase]]
		+	[[Category: Gosein, V.]]
		+	[[Category: Krajden, O.]]
		+	[[Category: Leung, T F.]]
		+	[[Category: Miller, G J.]]
		+	[[Category: Atipk1]]
		+	[[Category: Inositol]]
		+	[[Category: Ins5p 2-k]]
		+	[[Category: Ip5 2-k]]
		+	[[Category: Ipk]]
		+	[[Category: Polyphosphate kinase]]
		+	[[Category: Transferase]]

OCA at 05:16, 8 March 2012

OCA — Thu, 08 Mar 2012 05:16:46 GMT

←Older revision		Revision as of 05:16, 8 March 2012
Line 1:		Line 1:
	'''Unreleased structure'''		'''Unreleased structure'''

-	The entry 3udt is ON HOLD	+	The entry 3udt is ON HOLD until Paper Publication

	Authors: Gosein, V., Leung, T.-F., Krajden, O., Miller, G.J.		Authors: Gosein, V., Leung, T.-F., Krajden, O., Miller, G.J.

	Description: Inositol 1,3,4,5,6-pentakisphosphate 2-kinase from A. thaliana in complex with ADP and IP5.		Description: Inositol 1,3,4,5,6-pentakisphosphate 2-kinase from A. thaliana in complex with ADP and IP5.

OCA: Protected "3udt" [edit=sysop:move=sysop]

OCA — Wed, 09 Nov 2011 11:16:34 GMT

Protected "3udt" [edit=sysop:move=sysop]

←Older revision

Revision as of 11:16, 9 November 2011

OCA: New page: '''Unreleased structure''' The entry 3udt is ON HOLD Authors: Gosein, V., Leung, T.-F., Krajden, O., Miller, G.J. Description: Inositol 1,3,4,5,6-pentakisphosphate 2-kinase from A. tha...

OCA — Wed, 09 Nov 2011 11:16:34 GMT

New page: '''Unreleased structure''' The entry 3udt is ON HOLD Authors: Gosein, V., Leung, T.-F., Krajden, O., Miller, G.J. Description: Inositol 1,3,4,5,6-pentakisphosphate 2-kinase from A. tha...

New page

'''Unreleased structure'''

The entry 3udt is ON HOLD

Authors: Gosein, V., Leung, T.-F., Krajden, O., Miller, G.J.

Description: Inositol 1,3,4,5,6-pentakisphosphate 2-kinase from A. thaliana in complex with ADP and IP5.