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3e7o

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Revision as of 01:07, 10 February 2016

Crystal Structure of JNK2

Structural highlights

3e7o is a 2 chain structure with sequence from Human. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:
Gene:	MAPK9, JNK2, PRKM9 (HUMAN)
Activity:	Mitogen-activated protein kinase, with EC number 2.7.11.24
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum

Function

[MK09_HUMAN] Serine/threonine-protein kinase involved in various processes such as cell proliferation, differentiation, migration, transformation and programmed cell death. Extracellular stimuli such as proinflammatory cytokines or physical stress stimulate the stress-activated protein kinase/c-Jun N-terminal kinase (SAP/JNK) signaling pathway. In this cascade, two dual specificity kinases MAP2K4/MKK4 and MAP2K7/MKK7 phosphorylate and activate MAPK9/JNK2. In turn, MAPK9/JNK2 phosphorylates a number of transcription factors, primarily components of AP-1 such as JUN and ATF2 and thus regulates AP-1 transcriptional activity. In response to oxidative or ribotoxic stresses, inhibits rRNA synthesis by phosphorylating and inactivating the RNA polymerase 1-specific transcription initiation factor RRN3. Promotes stressed cell apoptosis by phosphorylating key regulatory factors including TP53 and YAP1. In T-cells, MAPK8 and MAPK9 are required for polarized differentiation of T-helper cells into Th1 cells. Upon T-cell receptor (TCR) stimulation, is activated by CARMA1, BCL10, MAP2K7 and MAP3K7/TAK1 to regulate JUN protein levels. Plays an important role in the osmotic stress-induced epithelial tight-junctions disruption. When activated, promotes beta-catenin/CTNNB1 degradation and inhibits the canonical Wnt signaling pathway. Participates also in neurite growth in spiral ganglion neurons.^[1] ^[2] ^[3] ^[4] ^[5] ^[6] MAPK9 isoforms display different binding patterns: alpha-1 and alpha-2 preferentially bind to JUN, whereas beta-1 and beta-2 bind to ATF2. However, there is no correlation between binding and phosphorylation, which is achieved at about the same efficiency by all isoforms. JUNB is not a substrate for JNK2 alpha-2, and JUND binds only weakly to it.^[7] ^[8] ^[9] ^[10] ^[11] ^[12]

Evolutionary Conservation

Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.

Publication Abstract from PubMed

c-Jun N-terminal kinase (JNK) 2 is a member of the mitogen-activated protein (MAP) kinase group of signaling proteins. MAP kinases share a common sequence insertion called "MAP kinase insert", which, for ERK2, has been shown to interact with regulatory proteins and, for p38alpha, has been proposed to be involved in the regulation of catalytic activity. We have determined the crystal structure of human JNK2 complexed with an indazole inhibitor by applying a high-throughput protein engineering and surface-site mutagenesis approach. A novel conformation of the activation loop is observed, which is not compatible with its phosphorylation by upstream kinases. This activation inhibitory conformation of JNK2 is stabilized by the MAP kinase insert that interacts with the activation loop in an induced-fit manner. We therefore suggest that the MAP kinase insert of JNK2 plays a role in the regulation of JNK2 activation, possibly by interacting with intracellular binding partners.

The crystal structure of JNK2 reveals conformational flexibility in the MAP kinase insert and indicates its involvement in the regulation of catalytic activity.,Shaw D, Wang SM, Villasenor AG, Tsing S, Walter D, Browner MF, Barnett J, Kuglstatter A J Mol Biol. 2008 Nov 21;383(4):885-93. Epub 2008 Sep 10. PMID:18801372^[13]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

References

↑ De Graeve F, Bahr A, Sabapathy KT, Hauss C, Wagner EF, Kedinger C, Chatton B. Role of the ATFa/JNK2 complex in Jun activation. Oncogene. 1999 Jun 10;18(23):3491-500. PMID:10376527 doi:http://dx.doi.org/10.1038/sj.onc.1202723
↑ Mayer C, Bierhoff H, Grummt I. The nucleolus as a stress sensor: JNK2 inactivates the transcription factor TIF-IA and down-regulates rRNA synthesis. Genes Dev. 2005 Apr 15;19(8):933-41. Epub 2005 Apr 1. PMID:15805466 doi:http://dx.doi.org/10.1101/gad.333205
↑ Oleinik NV, Krupenko NI, Krupenko SA. Cooperation between JNK1 and JNK2 in activation of p53 apoptotic pathway. Oncogene. 2007 Nov 8;26(51):7222-30. Epub 2007 May 21. PMID:17525747 doi:http://dx.doi.org/10.1038/sj.onc.1210526
↑ Hu D, Bi X, Fang W, Han A, Yang W. GSK3beta is involved in JNK2-mediated beta-catenin inhibition. PLoS One. 2009 Aug 13;4(8):e6640. doi: 10.1371/journal.pone.0006640. PMID:19675674 doi:http://dx.doi.org/10.1371/journal.pone.0006640
↑ Samak G, Suzuki T, Bhargava A, Rao RK. c-Jun NH2-terminal kinase-2 mediates osmotic stress-induced tight junction disruption in the intestinal epithelium. Am J Physiol Gastrointest Liver Physiol. 2010 Sep;299(3):G572-84. doi:, 10.1152/ajpgi.00265.2010. Epub 2010 Jul 1. PMID:20595622 doi:http://dx.doi.org/10.1152/ajpgi.00265.2010
↑ Tomlinson V, Gudmundsdottir K, Luong P, Leung KY, Knebel A, Basu S. JNK phosphorylates Yes-associated protein (YAP) to regulate apoptosis. Cell Death Dis. 2010;1:e29. doi: 10.1038/cddis.2010.7. PMID:21364637 doi:10.1038/cddis.2010.7
↑ De Graeve F, Bahr A, Sabapathy KT, Hauss C, Wagner EF, Kedinger C, Chatton B. Role of the ATFa/JNK2 complex in Jun activation. Oncogene. 1999 Jun 10;18(23):3491-500. PMID:10376527 doi:http://dx.doi.org/10.1038/sj.onc.1202723
↑ Mayer C, Bierhoff H, Grummt I. The nucleolus as a stress sensor: JNK2 inactivates the transcription factor TIF-IA and down-regulates rRNA synthesis. Genes Dev. 2005 Apr 15;19(8):933-41. Epub 2005 Apr 1. PMID:15805466 doi:http://dx.doi.org/10.1101/gad.333205
↑ Oleinik NV, Krupenko NI, Krupenko SA. Cooperation between JNK1 and JNK2 in activation of p53 apoptotic pathway. Oncogene. 2007 Nov 8;26(51):7222-30. Epub 2007 May 21. PMID:17525747 doi:http://dx.doi.org/10.1038/sj.onc.1210526
↑ Hu D, Bi X, Fang W, Han A, Yang W. GSK3beta is involved in JNK2-mediated beta-catenin inhibition. PLoS One. 2009 Aug 13;4(8):e6640. doi: 10.1371/journal.pone.0006640. PMID:19675674 doi:http://dx.doi.org/10.1371/journal.pone.0006640
↑ Samak G, Suzuki T, Bhargava A, Rao RK. c-Jun NH2-terminal kinase-2 mediates osmotic stress-induced tight junction disruption in the intestinal epithelium. Am J Physiol Gastrointest Liver Physiol. 2010 Sep;299(3):G572-84. doi:, 10.1152/ajpgi.00265.2010. Epub 2010 Jul 1. PMID:20595622 doi:http://dx.doi.org/10.1152/ajpgi.00265.2010
↑ Tomlinson V, Gudmundsdottir K, Luong P, Leung KY, Knebel A, Basu S. JNK phosphorylates Yes-associated protein (YAP) to regulate apoptosis. Cell Death Dis. 2010;1:e29. doi: 10.1038/cddis.2010.7. PMID:21364637 doi:10.1038/cddis.2010.7
↑ Shaw D, Wang SM, Villasenor AG, Tsing S, Walter D, Browner MF, Barnett J, Kuglstatter A. The crystal structure of JNK2 reveals conformational flexibility in the MAP kinase insert and indicates its involvement in the regulation of catalytic activity. J Mol Biol. 2008 Nov 21;383(4):885-93. Epub 2008 Sep 10. PMID:18801372 doi:10.1016/j.jmb.2008.08.086

1 Structural highlights
2 Function
3 Evolutionary Conservation
4 Publication Abstract from PubMed
5 See Also
6 References

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/3e7o"

@@ Line 6: / Line 6: @@
 <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">MAPK9, JNK2, PRKM9 ([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/Mitogen-activated_protein_kinase Mitogen-activated protein kinase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.7.11.24 2.7.11.24] </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=3e7o FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3e7o OCA], [http://www.rcsb.org/pdb/explore.do?structureId=3e7o RCSB], [http://www.ebi.ac.uk/pdbsum/3e7o 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=3e7o FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3e7o OCA], [http://pdbe.org/3e7o PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=3e7o RCSB], [http://www.ebi.ac.uk/pdbsum/3e7o PDBsum]</span></td></tr>
 </table>
 == Function ==
@@ Line 18: / Line 18: @@
     <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].
+</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=3e7o ConSurf].
 <div style="clear:both"></div>
 <div style="background-color:#fffaf0;">
@@ Line 28: / Line 28: @@
 From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
 </div>
+<div class="pdbe-citations 3e7o" style="background-color:#fffaf0;"></div>
 ==See Also==

3e7o

From Proteopedia

Revision as of 01:07, 10 February 2016

Crystal Structure of JNK2

Structural highlights

Function

Evolutionary Conservation

Publication Abstract from PubMed

See Also

References

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Proteopedia Page Contributors and Editors (what is this?)

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