5usy - Revision history

OCA at 13:33, 4 October 2023

OCA — Wed, 04 Oct 2023 13:33:49 GMT

←Older revision		Revision as of 13:33, 4 October 2023
Line 3:		Line 3:
	<StructureSection load='5usy' size='340' side='right'caption='[[5usy]], [[Resolution\|resolution]] 2.00Å' scene=''>		<StructureSection load='5usy' size='340' side='right'caption='[[5usy]], [[Resolution\|resolution]] 2.00Å' scene=''>
	== Structural highlights ==		== Structural highlights ==
-	<table><tr><td colspan='2'>[[5usy]] is a 2 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=5USY OCA]. For a <b>guided tour on the structure components</b> use [~~http~~://~~oca~~.~~weizmann.ac.il/oca-docs~~/fgij/fg.htm?mol=5USY FirstGlance]. <br>	+	<table><tr><td colspan='2'>[[5usy]] is a 2 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=5USY OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=5USY FirstGlance]. <br>
-	</td></tr><tr id='~~ligand~~'><td class="sblockLbl"><b>[[~~Ligand~~\|~~Ligands~~:]]</b></td><td class="sblockDat"~~><scene name~~=~~'pdbligand=GOL:GLYCEROL'>GOL</scene~~>, ~~<scene name='pdbligand=SKE:4-({5-AMINO-1-~~[~~(2,6-DIFLUOROPHENYL)CARBONYL~~]~~-1H-1,~~2~~,4-TRIAZOL-3-YL}AMINO)BENZENESULFONAMIDE'>SKE</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</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='~~NonStdRes~~'><td class="sblockLbl"><b>[[~~Non-Standard_Residue~~\|~~NonStd Res~~:]]</b></td><td class="sblockDat"><scene name='pdbligand=~~PTR~~:~~O-PHOSPHOTYROSINE~~'>~~PTR~~</scene><~~/td></tr>~~	+	<tr id='ligand'><td class="sblockLbl"><b>[[Ligand\|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=GOL:GLYCEROL'>GOL</scene>, <scene name='pdbligand=PTR:O-PHOSPHOTYROSINE'>PTR</scene>, <scene name='pdbligand=SKE:4-({5-AMINO-1-[(2,6-DIFLUOROPHENYL)CARBONYL]-1H-1,2,4-TRIAZOL-3-YL}AMINO)BENZENESULFONAMIDE'>SKE</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene></td></tr>
-	~~<tr id~~='~~related'><td class~~=~~"sblockLbl"><b>[[Related_structure\|Related~~:~~]]</b~~></td>~~<td class="sblockDat">[[5usz\|5usz]]~~, ~~[[5ut0\|5ut0]], [[5ut1\|5ut1]], [[5ut2\|5ut2]], [[5ut3\|5ut3]], [[5ut4\|5ut4]], [[5ut5\|5ut5]], [[5ut6\|5ut6]]~~<~~/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=5usy FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5usy OCA], [https://pdbe.org/5usy PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=5usy RCSB], [https://www.ebi.ac.uk/pdbsum/5usy PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=5usy ProSAT]</span></td></tr>
-	~~<tr id~~='~~gene'><td class~~=~~"sblockLbl"><b>[[Gene\|Gene~~:~~]]</b></td><td class="sblockDat">JAK2~~ ([~~http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 HUMAN~~])~~</td~~></tr>	+
-	<~~tr id~~='~~activity'><td class~~=~~"sblockLbl"><b>Activity~~:~~</b></td><td class="sblockDat"><span class='plainlinks~~'>~~[http://en.wikipedia.org/wiki/Non-specific_protein-tyrosine_kinase Non-specific protein-tyrosine kinase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.7.10.2 2.7.10.2]~~ </~~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=5usy FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5usy OCA], [~~http~~://pdbe.org/5usy PDBe], [~~http~~://www.rcsb.org/pdb/explore.do?structureId=5usy RCSB], [~~http~~://www.ebi.ac.uk/pdbsum/5usy PDBsum], [~~http~~://prosat.h-its.org/prosat/prosatexe?pdbcode=5usy ProSAT]</span></td></tr>	+
	</table>		</table>
	== Disease ==		== Disease ==
-	[~~[http~~://www.uniprot.org/uniprot/JAK2_HUMAN JAK2_HUMAN]] Note=Chromosomal aberrations involving JAK2 are found in both chronic and acute forms of eosinophilic, lymphoblastic and myeloid leukemia. Translocation t(8;9)(p22;p24) with PCM1 links the protein kinase domain of JAK2 to the major portion of PCM1. Translocation t(9;12)(p24;p13) with ETV6. Defects in JAK2 are a cause of susceptibility to Budd-Chiari syndrome (BDCHS) [MIM:[~~http~~://omim.org/entry/600880 600880]]. A syndrome caused by obstruction of hepatic venous outflow involving either the hepatic veins or the terminal segment of the inferior vena cava. Obstructions are generally caused by thrombosis and lead to hepatic congestion and ischemic necrosis. Clinical manifestations observed in the majority of patients include hepatomegaly, right upper quadrant pain and abdominal ascites. Budd-Chiari syndrome is associated with a combination of disease states including primary myeloproliferative syndromes and thrombophilia due to factor V Leiden, protein C deficiency and antithrombin III deficiency. Budd-Chiari syndrome is a rare but typical complication in patients with polycythemia vera. Defects in JAK2 are a cause of polycythemia vera (PV) [MIM:[~~http~~://omim.org/entry/263300 263300]]. A myeloproliferative disorder characterized by abnormal proliferation of all hematopoietic bone marrow elements, erythroid hyperplasia, an absolute increase in total blood volume, but also by myeloid leukocytosis, thrombocytosis and splenomegaly.<ref>PMID:15781101</ref> <ref>PMID:15793561</ref> <ref>PMID:15858187</ref> <ref>PMID:16603627</ref> Defects in JAK2 gene may be the cause of thrombocythemia type 3 (THCYT3) [MIM:[~~http~~://omim.org/entry/614521 614521]]. A myeloproliferative disorder characterized by elevated platelet levels due to sustained proliferation of megakaryocytes, and frequently lead to thrombotic and haemorrhagic complications.<ref>PMID:16325696</ref> <ref>PMID:22397670</ref> Defects in JAK2 are a cause of myelofibrosis (MYELOF) [MIM:[~~http~~://omim.org/entry/254450 254450]]. Myelofibrosis is a disorder characterized by replacement of the bone marrow by fibrous tissue, occurring in association with a myeloproliferative disorder. Clinical manifestations may include anemia, pallor, splenomegaly, hypermetabolic state, petechiae, ecchymosis, bleeding, lymphadenopathy, hepatomegaly, portal hypertension. Defects in JAK2 are a cause of acute myelogenous leukemia (AML) [MIM:[~~http~~://omim.org/entry/601626 601626]]. AML is a malignant disease in which hematopoietic precursors are arrested in an early stage of development.<ref>PMID:16247455</ref>	+	[https://www.uniprot.org/uniprot/JAK2_HUMAN JAK2_HUMAN] Note=Chromosomal aberrations involving JAK2 are found in both chronic and acute forms of eosinophilic, lymphoblastic and myeloid leukemia. Translocation t(8;9)(p22;p24) with PCM1 links the protein kinase domain of JAK2 to the major portion of PCM1. Translocation t(9;12)(p24;p13) with ETV6. Defects in JAK2 are a cause of susceptibility to Budd-Chiari syndrome (BDCHS) [MIM:[https://omim.org/entry/600880 600880]. A syndrome caused by obstruction of hepatic venous outflow involving either the hepatic veins or the terminal segment of the inferior vena cava. Obstructions are generally caused by thrombosis and lead to hepatic congestion and ischemic necrosis. Clinical manifestations observed in the majority of patients include hepatomegaly, right upper quadrant pain and abdominal ascites. Budd-Chiari syndrome is associated with a combination of disease states including primary myeloproliferative syndromes and thrombophilia due to factor V Leiden, protein C deficiency and antithrombin III deficiency. Budd-Chiari syndrome is a rare but typical complication in patients with polycythemia vera. Defects in JAK2 are a cause of polycythemia vera (PV) [MIM:[https://omim.org/entry/263300 263300]. A myeloproliferative disorder characterized by abnormal proliferation of all hematopoietic bone marrow elements, erythroid hyperplasia, an absolute increase in total blood volume, but also by myeloid leukocytosis, thrombocytosis and splenomegaly.<ref>PMID:15781101</ref> <ref>PMID:15793561</ref> <ref>PMID:15858187</ref> <ref>PMID:16603627</ref> Defects in JAK2 gene may be the cause of thrombocythemia type 3 (THCYT3) [MIM:[https://omim.org/entry/614521 614521]. A myeloproliferative disorder characterized by elevated platelet levels due to sustained proliferation of megakaryocytes, and frequently lead to thrombotic and haemorrhagic complications.<ref>PMID:16325696</ref> <ref>PMID:22397670</ref> Defects in JAK2 are a cause of myelofibrosis (MYELOF) [MIM:[https://omim.org/entry/254450 254450]. Myelofibrosis is a disorder characterized by replacement of the bone marrow by fibrous tissue, occurring in association with a myeloproliferative disorder. Clinical manifestations may include anemia, pallor, splenomegaly, hypermetabolic state, petechiae, ecchymosis, bleeding, lymphadenopathy, hepatomegaly, portal hypertension. Defects in JAK2 are a cause of acute myelogenous leukemia (AML) [MIM:[https://omim.org/entry/601626 601626]. AML is a malignant disease in which hematopoietic precursors are arrested in an early stage of development.<ref>PMID:16247455</ref>
	== Function ==		== Function ==
-	[~~[http~~://www.uniprot.org/uniprot/JAK2_HUMAN JAK2_HUMAN]] Non-receptor tyrosine kinase involved in various processes such as cell growth, development, differentiation or histone modifications. Mediates essential signaling events in both innate and adaptive immunity. In the cytoplasm, plays a pivotal role in signal transduction via its association with type I receptors such as growth hormone (GHR), prolactin (PRLR), leptin (LEPR), erythropoietin (EPOR), thrombopoietin (THPO); or type II receptors including IFN-alpha, IFN-beta, IFN-gamma and multiple interleukins. Following ligand-binding to cell surface receptors, phosphorylates specific tyrosine residues on the cytoplasmic tails of the receptor, creating docking sites for STATs proteins. Subsequently, phosphorylates the STATs proteins once they are recruited to the receptor. Phosphorylated STATs then form homodimer or heterodimers and translocate to the nucleus to activate gene transcription. For example, cell stimulation with erythropoietin (EPO) during erythropoiesis leads to JAK2 autophosphorylation, activation, and its association with erythropoietin receptor (EPOR) that becomes phosphorylated in its cytoplasmic domain. Then, STAT5 (STAT5A or STAT5B) is recruited, phosphorylated and activated by JAK2. Once activated, dimerized STAT5 translocates into the nucleus and promotes the transcription of several essential genes involved in the modulation of erythropoiesis. In addition, JAK2 mediates angiotensin-2-induced ARHGEF1 phosphorylation. Plays a role in cell cycle by phosphorylating CDKN1B. Cooperates with TEC through reciprocal phosphorylation to mediate cytokine-driven activation of FOS transcription. In the nucleus, plays a key role in chromatin by specifically mediating phosphorylation of 'Tyr-41' of histone H3 (H3Y41ph), a specific tag that promotes exclusion of CBX5 (HP1 alpha) from chromatin.<ref>PMID:12023369</ref> <ref>PMID:19783980</ref> <ref>PMID:20098430</ref> <ref>PMID:21423214</ref>	+	[https://www.uniprot.org/uniprot/JAK2_HUMAN JAK2_HUMAN] Non-receptor tyrosine kinase involved in various processes such as cell growth, development, differentiation or histone modifications. Mediates essential signaling events in both innate and adaptive immunity. In the cytoplasm, plays a pivotal role in signal transduction via its association with type I receptors such as growth hormone (GHR), prolactin (PRLR), leptin (LEPR), erythropoietin (EPOR), thrombopoietin (THPO); or type II receptors including IFN-alpha, IFN-beta, IFN-gamma and multiple interleukins. Following ligand-binding to cell surface receptors, phosphorylates specific tyrosine residues on the cytoplasmic tails of the receptor, creating docking sites for STATs proteins. Subsequently, phosphorylates the STATs proteins once they are recruited to the receptor. Phosphorylated STATs then form homodimer or heterodimers and translocate to the nucleus to activate gene transcription. For example, cell stimulation with erythropoietin (EPO) during erythropoiesis leads to JAK2 autophosphorylation, activation, and its association with erythropoietin receptor (EPOR) that becomes phosphorylated in its cytoplasmic domain. Then, STAT5 (STAT5A or STAT5B) is recruited, phosphorylated and activated by JAK2. Once activated, dimerized STAT5 translocates into the nucleus and promotes the transcription of several essential genes involved in the modulation of erythropoiesis. In addition, JAK2 mediates angiotensin-2-induced ARHGEF1 phosphorylation. Plays a role in cell cycle by phosphorylating CDKN1B. Cooperates with TEC through reciprocal phosphorylation to mediate cytokine-driven activation of FOS transcription. In the nucleus, plays a key role in chromatin by specifically mediating phosphorylation of 'Tyr-41' of histone H3 (H3Y41ph), a specific tag that promotes exclusion of CBX5 (HP1 alpha) from chromatin.<ref>PMID:12023369</ref> <ref>PMID:19783980</ref> <ref>PMID:20098430</ref> <ref>PMID:21423214</ref>
	<div style="background-color:#fffaf0;">		<div style="background-color:#fffaf0;">
	== Publication Abstract from PubMed ==		== Publication Abstract from PubMed ==
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	__TOC__		__TOC__
	</StructureSection>		</StructureSection>
-	[[Category: ~~Human~~]]	+	[[Category: Homo sapiens]]
	[[Category: Large Structures]]		[[Category: Large Structures]]
-	~~[[Category: Non-specific protein-tyrosine kinase]]~~	+	[[Category: Puleo DE]]
-	[[Category: Puleo~~, D E~~]]	+	[[Category: Schlessinger J]]
-	[[Category: Schlessinger, J]]	+
-	~~[[Category: Kinase domain]]~~	+
-	~~[[Category: Transferase-transferase inhibitor complex~~]]	+

OCA at 09:22, 1 January 2020

OCA — Wed, 01 Jan 2020 09:22:58 GMT

←Older revision		Revision as of 09:22, 1 January 2020
Line 1:		Line 1:

	==JAK2 JH1 in complex with JNJ-7706621==		==JAK2 JH1 in complex with JNJ-7706621==
-	<StructureSection load='5usy' size='340' side='right' caption='[[5usy]], [[Resolution\|resolution]] 2.00Å' scene=''>	+	<StructureSection load='5usy' size='340' side='right'caption='[[5usy]], [[Resolution\|resolution]] 2.00Å' scene=''>
	== Structural highlights ==		== Structural highlights ==
-	<table><tr><td colspan='2'>[[5usy]] is a 2 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5USY OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=5USY FirstGlance]. <br>	+	<table><tr><td colspan='2'>[[5usy]] is a 2 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=5USY OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=5USY FirstGlance]. <br>
	</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand\|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=GOL:GLYCEROL'>GOL</scene>, <scene name='pdbligand=SKE:4-({5-AMINO-1-[(2,6-DIFLUOROPHENYL)CARBONYL]-1H-1,2,4-TRIAZOL-3-YL}AMINO)BENZENESULFONAMIDE'>SKE</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene></td></tr>		</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand\|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=GOL:GLYCEROL'>GOL</scene>, <scene name='pdbligand=SKE:4-({5-AMINO-1-[(2,6-DIFLUOROPHENYL)CARBONYL]-1H-1,2,4-TRIAZOL-3-YL}AMINO)BENZENESULFONAMIDE'>SKE</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene></td></tr>
	<tr id='NonStdRes'><td class="sblockLbl"><b>[[Non-Standard_Residue\|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=PTR:O-PHOSPHOTYROSINE'>PTR</scene></td></tr>		<tr id='NonStdRes'><td class="sblockLbl"><b>[[Non-Standard_Residue\|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=PTR:O-PHOSPHOTYROSINE'>PTR</scene></td></tr>
	<tr id='related'><td class="sblockLbl"><b>[[Related_structure\|Related:]]</b></td><td class="sblockDat">[[5usz\|5usz]], [[5ut0\|5ut0]], [[5ut1\|5ut1]], [[5ut2\|5ut2]], [[5ut3\|5ut3]], [[5ut4\|5ut4]], [[5ut5\|5ut5]], [[5ut6\|5ut6]]</td></tr>		<tr id='related'><td class="sblockLbl"><b>[[Related_structure\|Related:]]</b></td><td class="sblockDat">[[5usz\|5usz]], [[5ut0\|5ut0]], [[5ut1\|5ut1]], [[5ut2\|5ut2]], [[5ut3\|5ut3]], [[5ut4\|5ut4]], [[5ut5\|5ut5]], [[5ut6\|5ut6]]</td></tr>
		+	<tr id='gene'><td class="sblockLbl"><b>[[Gene\|Gene:]]</b></td><td class="sblockDat">JAK2 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 HUMAN])</td></tr>
	<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Non-specific_protein-tyrosine_kinase Non-specific protein-tyrosine kinase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.7.10.2 2.7.10.2] </span></td></tr>		<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Non-specific_protein-tyrosine_kinase Non-specific protein-tyrosine kinase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.7.10.2 2.7.10.2] </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=5usy FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5usy OCA], [http://pdbe.org/5usy PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=5usy RCSB], [http://www.ebi.ac.uk/pdbsum/5usy PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=5usy ProSAT]</span></td></tr>		<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=5usy FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5usy OCA], [http://pdbe.org/5usy PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=5usy RCSB], [http://www.ebi.ac.uk/pdbsum/5usy PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=5usy ProSAT]</span></td></tr>
Line 23:		Line 24:
	</div>		</div>
	<div class="pdbe-citations 5usy" style="background-color:#fffaf0;"></div>		<div class="pdbe-citations 5usy" style="background-color:#fffaf0;"></div>
		+
		+	==See Also==
		+	*[[Janus kinase 3D structures\|Janus kinase 3D structures]]
	== References ==		== References ==
	<references/>		<references/>
	__TOC__		__TOC__
	</StructureSection>		</StructureSection>
		+	[[Category: Human]]
		+	[[Category: Large Structures]]
	[[Category: Non-specific protein-tyrosine kinase]]		[[Category: Non-specific protein-tyrosine kinase]]
	[[Category: Puleo, D E]]		[[Category: Puleo, D E]]

OCA at 14:36, 6 November 2017

OCA — Mon, 06 Nov 2017 14:36:47 GMT

←Older revision		Revision as of 14:36, 6 November 2017
Line 23:		Line 23:
	</div>		</div>
	<div class="pdbe-citations 5usy" style="background-color:#fffaf0;"></div>		<div class="pdbe-citations 5usy" style="background-color:#fffaf0;"></div>
-
-	==See Also==
-	*[[Janus kinase\|Janus kinase]]
	== References ==		== References ==
	<references/>		<references/>

OCA at 10:43, 13 September 2017

OCA — Wed, 13 Sep 2017 10:43:38 GMT

←Older revision		Revision as of 10:43, 13 September 2017
Line 1:		Line 1:
-	'''Unreleased structure'''

-	~~The entry~~ 5usy is ~~ON HOLD~~ ~~until Paper~~ Publication	+	==JAK2 JH1 in complex with JNJ-7706621==
		+	<StructureSection load='5usy' size='340' side='right' caption='[[5usy]], [[Resolution\|resolution]] 2.00Å' scene=''>
		+	== Structural highlights ==
		+	<table><tr><td colspan='2'>[[5usy]] is a 2 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5USY OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=5USY FirstGlance]. <br>
		+	</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand\|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=GOL:GLYCEROL'>GOL</scene>, <scene name='pdbligand=SKE:4-({5-AMINO-1-[(2,6-DIFLUOROPHENYL)CARBONYL]-1H-1,2,4-TRIAZOL-3-YL}AMINO)BENZENESULFONAMIDE'>SKE</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene></td></tr>
		+	<tr id='NonStdRes'><td class="sblockLbl"><b>[[Non-Standard_Residue\|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=PTR:O-PHOSPHOTYROSINE'>PTR</scene></td></tr>
		+	<tr id='related'><td class="sblockLbl"><b>[[Related_structure\|Related:]]</b></td><td class="sblockDat">[[5usz\|5usz]], [[5ut0\|5ut0]], [[5ut1\|5ut1]], [[5ut2\|5ut2]], [[5ut3\|5ut3]], [[5ut4\|5ut4]], [[5ut5\|5ut5]], [[5ut6\|5ut6]]</td></tr>
		+	<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Non-specific_protein-tyrosine_kinase Non-specific protein-tyrosine kinase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.7.10.2 2.7.10.2] </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=5usy FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5usy OCA], [http://pdbe.org/5usy PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=5usy RCSB], [http://www.ebi.ac.uk/pdbsum/5usy PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=5usy ProSAT]</span></td></tr>
		+	</table>
		+	== Disease ==
		+	[[http://www.uniprot.org/uniprot/JAK2_HUMAN JAK2_HUMAN]] Note=Chromosomal aberrations involving JAK2 are found in both chronic and acute forms of eosinophilic, lymphoblastic and myeloid leukemia. Translocation t(8;9)(p22;p24) with PCM1 links the protein kinase domain of JAK2 to the major portion of PCM1. Translocation t(9;12)(p24;p13) with ETV6. Defects in JAK2 are a cause of susceptibility to Budd-Chiari syndrome (BDCHS) [MIM:[http://omim.org/entry/600880 600880]]. A syndrome caused by obstruction of hepatic venous outflow involving either the hepatic veins or the terminal segment of the inferior vena cava. Obstructions are generally caused by thrombosis and lead to hepatic congestion and ischemic necrosis. Clinical manifestations observed in the majority of patients include hepatomegaly, right upper quadrant pain and abdominal ascites. Budd-Chiari syndrome is associated with a combination of disease states including primary myeloproliferative syndromes and thrombophilia due to factor V Leiden, protein C deficiency and antithrombin III deficiency. Budd-Chiari syndrome is a rare but typical complication in patients with polycythemia vera. Defects in JAK2 are a cause of polycythemia vera (PV) [MIM:[http://omim.org/entry/263300 263300]]. A myeloproliferative disorder characterized by abnormal proliferation of all hematopoietic bone marrow elements, erythroid hyperplasia, an absolute increase in total blood volume, but also by myeloid leukocytosis, thrombocytosis and splenomegaly.<ref>PMID:15781101</ref> <ref>PMID:15793561</ref> <ref>PMID:15858187</ref> <ref>PMID:16603627</ref> Defects in JAK2 gene may be the cause of thrombocythemia type 3 (THCYT3) [MIM:[http://omim.org/entry/614521 614521]]. A myeloproliferative disorder characterized by elevated platelet levels due to sustained proliferation of megakaryocytes, and frequently lead to thrombotic and haemorrhagic complications.<ref>PMID:16325696</ref> <ref>PMID:22397670</ref> Defects in JAK2 are a cause of myelofibrosis (MYELOF) [MIM:[http://omim.org/entry/254450 254450]]. Myelofibrosis is a disorder characterized by replacement of the bone marrow by fibrous tissue, occurring in association with a myeloproliferative disorder. Clinical manifestations may include anemia, pallor, splenomegaly, hypermetabolic state, petechiae, ecchymosis, bleeding, lymphadenopathy, hepatomegaly, portal hypertension. Defects in JAK2 are a cause of acute myelogenous leukemia (AML) [MIM:[http://omim.org/entry/601626 601626]]. AML is a malignant disease in which hematopoietic precursors are arrested in an early stage of development.<ref>PMID:16247455</ref>
		+	== Function ==
		+	[[http://www.uniprot.org/uniprot/JAK2_HUMAN JAK2_HUMAN]] Non-receptor tyrosine kinase involved in various processes such as cell growth, development, differentiation or histone modifications. Mediates essential signaling events in both innate and adaptive immunity. In the cytoplasm, plays a pivotal role in signal transduction via its association with type I receptors such as growth hormone (GHR), prolactin (PRLR), leptin (LEPR), erythropoietin (EPOR), thrombopoietin (THPO); or type II receptors including IFN-alpha, IFN-beta, IFN-gamma and multiple interleukins. Following ligand-binding to cell surface receptors, phosphorylates specific tyrosine residues on the cytoplasmic tails of the receptor, creating docking sites for STATs proteins. Subsequently, phosphorylates the STATs proteins once they are recruited to the receptor. Phosphorylated STATs then form homodimer or heterodimers and translocate to the nucleus to activate gene transcription. For example, cell stimulation with erythropoietin (EPO) during erythropoiesis leads to JAK2 autophosphorylation, activation, and its association with erythropoietin receptor (EPOR) that becomes phosphorylated in its cytoplasmic domain. Then, STAT5 (STAT5A or STAT5B) is recruited, phosphorylated and activated by JAK2. Once activated, dimerized STAT5 translocates into the nucleus and promotes the transcription of several essential genes involved in the modulation of erythropoiesis. In addition, JAK2 mediates angiotensin-2-induced ARHGEF1 phosphorylation. Plays a role in cell cycle by phosphorylating CDKN1B. Cooperates with TEC through reciprocal phosphorylation to mediate cytokine-driven activation of FOS transcription. In the nucleus, plays a key role in chromatin by specifically mediating phosphorylation of 'Tyr-41' of histone H3 (H3Y41ph), a specific tag that promotes exclusion of CBX5 (HP1 alpha) from chromatin.<ref>PMID:12023369</ref> <ref>PMID:19783980</ref> <ref>PMID:20098430</ref> <ref>PMID:21423214</ref>
		+	<div style="background-color:#fffaf0;">
		+	== Publication Abstract from PubMed ==
		+	Janus kinases (JAKs) regulate hematopoiesis via the cytokine-mediated JAK-STAT signaling pathway. JAKs contain tandem C-terminal pseudokinase (JH2) and tyrosine kinase (JH1) domains. The JAK2 pseudokinase domain adopts a protein kinase fold and, despite its pseudokinase designation, binds ATP with micromolar affinity. Recent evidence shows that displacing ATP from the JAK2 JH2 domain alters the hyperactivation state of the oncogenic JAK2 V617F protein while sparing the wild type JAK2 protein. In this study, small molecule binders of JAK2 JH2 were identified via an in vitro screen. Top hits were characterized using biophysical and structural approaches. Development of pseudokinase-selective compounds may offer novel pharmacological opportunities for treating cancers driven by JAK2 V617F and other oncogenic JAK mutants.

-	~~Authors~~:	+	Identification and Characterization of JAK2 Pseudokinase Domain Small Molecule Binders.,Puleo DE, Kucera K, Hammaren HM, Ungureanu D, Newton AS, Silvennoinen O, Jorgensen WL, Schlessinger J ACS Med Chem Lett. 2017 May 17;8(6):618-621. doi: 10.1021/acsmedchemlett.7b00153., eCollection 2017 Jun 8. PMID:28626521<ref>PMID:28626521</ref>

-	~~Description~~:	+	From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br>
-	[[Category: ~~Unreleased Structures~~]]	+	</div>
		+	<div class="pdbe-citations 5usy" style="background-color:#fffaf0;"></div>
		+
		+	==See Also==
		+	*[[Janus kinase\|Janus kinase]]
		+	== References ==
		+	<references/>
		+	__TOC__
		+	</StructureSection>
		+	[[Category: Non-specific protein-tyrosine kinase]]
		+	[[Category: Puleo, D E]]
		+	[[Category: Schlessinger, J]]
		+	[[Category: Kinase domain]]
		+	[[Category: Transferase-transferase inhibitor complex]]

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OCA: New page: '''Unreleased structure''' The entry 5usy is ON HOLD Authors: Description: Category: Unreleased Structures

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New page: '''Unreleased structure''' The entry 5usy is ON HOLD Authors: Description: Category: Unreleased Structures

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'''Unreleased structure'''

The entry 5usy is ON HOLD

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Description:
[[Category: Unreleased Structures]]