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| | <StructureSection load='2vag' size='340' side='right'caption='[[2vag]], [[Resolution|resolution]] 1.80Å' scene=''> | | <StructureSection load='2vag' size='340' side='right'caption='[[2vag]], [[Resolution|resolution]] 1.80Å' scene=''> |
| | == Structural highlights == | | == Structural highlights == |
| - | <table><tr><td colspan='2'>[[2vag]] is a 1 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=2VAG OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2VAG FirstGlance]. <br> | + | <table><tr><td colspan='2'>[[2vag]] is a 1 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=2VAG OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2VAG FirstGlance]. <br> |
| - | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=V25:ETHYL+3-[(E)-2-AMINO-1-CYANOETHENYL]-6,7-DICHLORO-1-METHYL-1H-INDOLE-2-CARBOXYLATE'>V25</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]] 1.8Å</td></tr> |
| - | <tr id='NonStdRes'><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=SEP:PHOSPHOSERINE'>SEP</scene>, <scene name='pdbligand=TPO:PHOSPHOTHREONINE'>TPO</scene></td></tr> | + | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=SEP:PHOSPHOSERINE'>SEP</scene>, <scene name='pdbligand=TPO:PHOSPHOTHREONINE'>TPO</scene>, <scene name='pdbligand=V25:ETHYL+3-[(E)-2-AMINO-1-CYANOETHENYL]-6,7-DICHLORO-1-METHYL-1H-INDOLE-2-CARBOXYLATE'>V25</scene></td></tr> |
| - | <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat"><div style='overflow: auto; max-height: 3em;'>[[1z57|1z57]]</div></td></tr>
| + | |
| - | <tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[https://en.wikipedia.org/wiki/Dual-specificity_kinase Dual-specificity kinase], with EC number [https://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.7.12.1 2.7.12.1] </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=2vag FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2vag OCA], [https://pdbe.org/2vag PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2vag RCSB], [https://www.ebi.ac.uk/pdbsum/2vag PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2vag 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=2vag FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2vag OCA], [https://pdbe.org/2vag PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2vag RCSB], [https://www.ebi.ac.uk/pdbsum/2vag PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2vag ProSAT]</span></td></tr> |
| | </table> | | </table> |
| | == Function == | | == Function == |
| - | [[https://www.uniprot.org/uniprot/CLK1_HUMAN CLK1_HUMAN]] Dual specificity kinase acting on both serine/threonine and tyrosine-containing substrates. Phosphorylates serine- and arginine-rich (SR) proteins of the spliceosomal complex and may be a constituent of a network of regulatory mechanisms that enable SR proteins to control RNA splicing. Phosphorylates: SRSF1, SRSF3 and PTPN1. Regulates the alternative splicing of tissue factor (F3) pre-mRNA in endothelial cells and adenovirus E1A pre-mRNA.<ref>PMID:10480872</ref> <ref>PMID:19168442</ref>
| + | [https://www.uniprot.org/uniprot/CLK1_HUMAN CLK1_HUMAN] Dual specificity kinase acting on both serine/threonine and tyrosine-containing substrates. Phosphorylates serine- and arginine-rich (SR) proteins of the spliceosomal complex and may be a constituent of a network of regulatory mechanisms that enable SR proteins to control RNA splicing. Phosphorylates: SRSF1, SRSF3 and PTPN1. Regulates the alternative splicing of tissue factor (F3) pre-mRNA in endothelial cells and adenovirus E1A pre-mRNA.<ref>PMID:10480872</ref> <ref>PMID:19168442</ref> |
| | == Evolutionary Conservation == | | == Evolutionary Conservation == |
| | [[Image:Consurf_key_small.gif|200px|right]] | | [[Image:Consurf_key_small.gif|200px|right]] |
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| | __TOC__ | | __TOC__ |
| | </StructureSection> | | </StructureSection> |
| - | [[Category: Dual-specificity kinase]] | + | [[Category: Homo sapiens]] |
| - | [[Category: Human]]
| + | |
| | [[Category: Large Structures]] | | [[Category: Large Structures]] |
| - | [[Category: Arrowsmith, C H]] | + | [[Category: Arrowsmith CH]] |
| - | [[Category: Bracher, F]] | + | [[Category: Bracher F]] |
| - | [[Category: Bullock, A N]] | + | [[Category: Bullock AN]] |
| - | [[Category: Delft, F von]]
| + | [[Category: Edwards A]] |
| - | [[Category: Edwards, A]] | + | [[Category: Fedorov O]] |
| - | [[Category: Fedorov, O]] | + | [[Category: Huber K]] |
| - | [[Category: Huber, K]] | + | [[Category: Knapp S]] |
| - | [[Category: Knapp, S]] | + | [[Category: Pike ACW]] |
| - | [[Category: Pike, A C.W]] | + | [[Category: Pilka ES]] |
| - | [[Category: Pilka, E S]] | + | [[Category: Sundstrom M]] |
| - | [[Category: Sundstrom, M]] | + | [[Category: Ugochukwu E]] |
| - | [[Category: Ugochukwu, E]] | + | [[Category: Weigelt J]] |
| - | [[Category: Weigelt, J]] | + | [[Category: Von Delft F]] |
| - | [[Category: Nucleus]] | + | |
| - | [[Category: Serine/threonine-protein kinase]]
| + | |
| - | [[Category: Transferase]]
| + | |
| - | [[Category: Tyrosine-protein kinase]]
| + | |
| Structural highlights
Function
CLK1_HUMAN Dual specificity kinase acting on both serine/threonine and tyrosine-containing substrates. Phosphorylates serine- and arginine-rich (SR) proteins of the spliceosomal complex and may be a constituent of a network of regulatory mechanisms that enable SR proteins to control RNA splicing. Phosphorylates: SRSF1, SRSF3 and PTPN1. Regulates the alternative splicing of tissue factor (F3) pre-mRNA in endothelial cells and adenovirus E1A pre-mRNA.[1] [2]
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
There is a growing recognition of the importance of protein kinases in the control of alternative splicing. To define the underlying regulatory mechanisms, highly selective inhibitors are needed. Here, we report the discovery and characterization of the dichloroindolyl enaminonitrile KH-CB19, a potent and highly specific inhibitor of the CDC2-like kinase isoforms 1 and 4 (CLK1/CLK4). Cocrystal structures of KH-CB19 with CLK1 and CLK3 revealed a non-ATP mimetic binding mode, conformational changes in helix alphaC and the phosphate binding loop and halogen bonding to the kinase hinge region. KH-CB19 effectively suppressed phosphorylation of SR (serine/arginine) proteins in cells, consistent with its expected mechanism of action. Chemical inhibition of CLK1/CLK4 generated a unique pattern of splicing factor dephosphorylation and had at low nM concentration a profound effect on splicing of the two tissue factor isoforms flTF (full-length TF) and asHTF (alternatively spliced human TF).
Specific CLK inhibitors from a novel chemotype for regulation of alternative splicing.,Fedorov O, Huber K, Eisenreich A, Filippakopoulos P, King O, Bullock AN, Szklarczyk D, Jensen LJ, Fabbro D, Trappe J, Rauch U, Bracher F, Knapp S Chem Biol. 2011 Jan 28;18(1):67-76. PMID:21276940[3]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
See Also
References
- ↑ Moeslein FM, Myers MP, Landreth GE. The CLK family kinases, CLK1 and CLK2, phosphorylate and activate the tyrosine phosphatase, PTP-1B. J Biol Chem. 1999 Sep 17;274(38):26697-704. PMID:10480872
- ↑ Eisenreich A, Bogdanov VY, Zakrzewicz A, Pries A, Antoniak S, Poller W, Schultheiss HP, Rauch U. Cdc2-like kinases and DNA topoisomerase I regulate alternative splicing of tissue factor in human endothelial cells. Circ Res. 2009 Mar 13;104(5):589-99. doi: 10.1161/CIRCRESAHA.108.183905. Epub, 2009 Jan 22. PMID:19168442 doi:10.1161/CIRCRESAHA.108.183905
- ↑ Fedorov O, Huber K, Eisenreich A, Filippakopoulos P, King O, Bullock AN, Szklarczyk D, Jensen LJ, Fabbro D, Trappe J, Rauch U, Bracher F, Knapp S. Specific CLK inhibitors from a novel chemotype for regulation of alternative splicing. Chem Biol. 2011 Jan 28;18(1):67-76. PMID:21276940 doi:10.1016/j.chembiol.2010.11.009
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