6yg4: Difference between revisions
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==Crystal structure of MKK7 (MAP2K7) in complex with K00007== | ==Crystal structure of MKK7 (MAP2K7) in complex with K00007== | ||
<StructureSection load='6yg4' size='340' side='right'caption='[[6yg4]]' scene=''> | <StructureSection load='6yg4' size='340' side='right'caption='[[6yg4]], [[Resolution|resolution]] 2.30Å' scene=''> | ||
== Structural highlights == | == Structural highlights == | ||
<table><tr><td colspan='2'>Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6YG4 OCA]. For a <b>guided tour on the structure components</b> use [http://proteopedia.org/fgij/fg.htm?mol=6YG4 FirstGlance]. <br> | <table><tr><td colspan='2'>[[6yg4]] is a 1 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=6YG4 OCA]. For a <b>guided tour on the structure components</b> use [http://proteopedia.org/fgij/fg.htm?mol=6YG4 FirstGlance]. <br> | ||
</td></tr><tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://proteopedia.org/fgij/fg.htm?mol=6yg4 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6yg4 OCA], [http://pdbe.org/6yg4 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=6yg4 RCSB], [http://www.ebi.ac.uk/pdbsum/6yg4 PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=6yg4 ProSAT]</span></td></tr> | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=EDO:1,2-ETHANEDIOL'>EDO</scene>, <scene name='pdbligand=SU9:(3Z)-3-(1H-IMIDAZOL-5-YLMETHYLENE)-5-METHOXY-1H-INDOL-2(3H)-ONE'>SU9</scene></td></tr> | ||
<tr id='NonStdRes'><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=CSD:3-SULFINOALANINE'>CSD</scene>, <scene name='pdbligand=CSO:S-HYDROXYCYSTEINE'>CSO</scene></td></tr> | |||
<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">MAP2K7, JNKK2, MEK7, MKK7, PRKMK7, SKK4 ([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_kinase Mitogen-activated protein kinase kinase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.7.12.2 2.7.12.2] </span></td></tr> | |||
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://proteopedia.org/fgij/fg.htm?mol=6yg4 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6yg4 OCA], [http://pdbe.org/6yg4 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=6yg4 RCSB], [http://www.ebi.ac.uk/pdbsum/6yg4 PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=6yg4 ProSAT]</span></td></tr> | |||
</table> | </table> | ||
== Function == | |||
[[http://www.uniprot.org/uniprot/MP2K7_HUMAN MP2K7_HUMAN]] Dual specificity protein kinase which acts as an essential component of the MAP kinase signal transduction pathway. Essential component of the stress-activated protein kinase/c-Jun N-terminal kinase (SAP/JNK) signaling pathway. With MAP2K4/MKK4, is the one of the only known kinase to directly activate the stress-activated protein kinase/c-Jun N-terminal kinases MAPK8/JNK1, MAPK9/JNK2 and MAPK10/JNK3. MAP2K4/MKK4 and MAP2K7/MKK7 both activate the JNKs by phosphorylation, but they differ in their preference for the phosphorylation site in the Thr-Pro-Tyr motif. MAP2K4/MKK4 shows preference for phosphorylation of the Tyr residue and MAP2K7/MKK7 for the Thr residue. The monophosphorylation of JNKs on the Thr residue is sufficient to increase JNK activity indicating that MAP2K7/MKK7 is important to trigger JNK activity, while the additional phosphorylation of the Tyr residue by MAP2K4/MKK4 ensures optimal JNK activation. Has a specific role in JNK signal transduction pathway activated by proinflammatory cytokines. The MKK/JNK signaling pathway is also involved in mitochondrial death signaling pathway, including the release cytochrome c, leading to apoptosis.<ref>PMID:9372971</ref> <ref>PMID:9312068</ref> <ref>PMID:9535930</ref> [:] | |||
<div style="background-color:#fffaf0;"> | |||
== Publication Abstract from PubMed == | |||
MKK7 (MEK7) is a key regulator of the JNK stress signaling pathway and targeting MKK7 has been proposed as a chemotherapeutic strategy. Detailed understanding of the MKK7 structure and factors that affect its activity is therefore of critical importance. Here, we present a comprehensive set of MKK7 crystal structures revealing insights into catalytic domain plasticity and the role of the N-terminal regulatory helix, conserved in all MAP2Ks, mediating kinase activation. Crystal structures harboring this regulatory helix revealed typical structural features of active kinase, providing exclusively a first model of the MAP2K active state. A small-molecule screening campaign yielded multiple scaffolds, including type II irreversible inhibitors a binding mode that has not been reported previously. We also observed an unprecedented allosteric pocket located in the N-terminal lobe for the approved drug ibrutinib. Collectively, our structural and functional data expand and provide alternative targeting strategies for this important MAP2K kinase. | |||
Catalytic Domain Plasticity of MKK7 Reveals Structural Mechanisms of Allosteric Activation and Diverse Targeting Opportunities.,Schroder M, Tan L, Wang J, Liang Y, Gray NS, Knapp S, Chaikuad A Cell Chem Biol. 2020 Aug 4. pii: S2451-9456(20)30287-7. doi:, 10.1016/j.chembiol.2020.07.014. PMID:32783966<ref>PMID:32783966</ref> | |||
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |||
</div> | |||
<div class="pdbe-citations 6yg4" style="background-color:#fffaf0;"></div> | |||
== References == | |||
<references/> | |||
__TOC__ | __TOC__ | ||
</StructureSection> | </StructureSection> | ||
[[Category: Human]] | |||
[[Category: Large Structures]] | [[Category: Large Structures]] | ||
[[Category: Chaikuad A]] | [[Category: Mitogen-activated protein kinase kinase]] | ||
[[Category: Knapp S]] | [[Category: Chaikuad, A]] | ||
[[Category: Knapp, S]] | |||
[[Category: Structural genomic]] | |||
[[Category: Jnk signaling]] | |||
[[Category: Kinase]] | |||
[[Category: Kinase inhibitor]] | |||
[[Category: Map2k]] | |||
[[Category: Map2k7]] | |||
[[Category: Mek]] | |||
[[Category: Mek7]] | |||
[[Category: Mkk7]] | |||
[[Category: Sgc]] | |||
[[Category: Transferase]] |