1q5k

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[[Image:1q5k.gif|left|200px]]
[[Image:1q5k.gif|left|200px]]
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{{Structure
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<!--
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|PDB= 1q5k |SIZE=350|CAPTION= <scene name='initialview01'>1q5k</scene>, resolution 1.94&Aring;
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The line below this paragraph, containing "STRUCTURE_1q5k", creates the "Structure Box" on the page.
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|SITE=
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You may change the PDB parameter (which sets the PDB file loaded into the applet)
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|LIGAND= <scene name='pdbligand=TMU:N-(4-METHOXYBENZYL)-N&#39;-(5-NITRO-1,3-THIAZOL-2-YL)UREA'>TMU</scene>
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or the SCENE parameter (which sets the initial scene displayed when the page is loaded),
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|ACTIVITY= <span class='plainlinks'>[http://en.wikipedia.org/wiki/Non-specific_serine/threonine_protein_kinase Non-specific serine/threonine protein kinase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.7.11.1 2.7.11.1] </span>
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or leave the SCENE parameter empty for the default display.
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|GENE= GSK3B ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 Homo sapiens])
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-->
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|DOMAIN=
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{{STRUCTURE_1q5k| PDB=1q5k | SCENE= }}
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|RELATEDENTRY=
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|RESOURCES=<span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1q5k FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1q5k OCA], [http://www.ebi.ac.uk/pdbsum/1q5k PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=1q5k RCSB]</span>
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}}
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'''crystal structure of Glycogen synthase kinase 3 in complexed with inhibitor'''
'''crystal structure of Glycogen synthase kinase 3 in complexed with inhibitor'''
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[[Category: Radesater, A C.]]
[[Category: Radesater, A C.]]
[[Category: Xue, Y.]]
[[Category: Xue, Y.]]
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[[Category: kinase-inhibitor complex]]
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[[Category: Kinase-inhibitor complex]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sat May 3 05:53:27 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun Mar 30 23:09:09 2008''
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Revision as of 02:53, 3 May 2008

Image:1q5k.gif

Template:STRUCTURE 1q5k

crystal structure of Glycogen synthase kinase 3 in complexed with inhibitor


Overview

Glycogen synthase kinase 3 (GSK3) is a serine/threonine kinase that has been implicated in pathological conditions such as diabetes and Alzheimer's disease. We report the characterization of a GSK3 inhibitor, AR-A014418, which inhibits GSK3 (IC50 = 104 +/- 27 nM), in an ATP-competitive manner (Ki = 38 nM). AR-A014418 does not significantly inhibit cdk2 or cdk5 (IC50 > 100 microM) or 26 other kinases demonstrating high specificity for GSK3. We report the co-crystallization of AR-A014418 with the GSK3beta protein and provide a description of the interactions within the ATP pocket, as well as an understanding of the structural basis for the selectivity of AR-A014418. AR-A014418 inhibits tau phosphorylation at a GSK3-specific site (Ser-396) in cells stably expressing human four-repeat tau protein. AR-A014418 protects N2A neuroblastoma cells against cell death mediated by inhibition of the phosphatidylinositol 3-kinase/protein kinase B survival pathway. Furthermore, AR-A014418 inhibits neurodegeneration mediated by beta-amyloid peptide in hippocampal slices. AR-A014418 may thus have important applications as a tool to elucidate the role of GSK3 in cellular signaling and possibly in Alzheimer's disease. AR-A014418 is the first compound of a family of specific inhibitors of GSK3 that does not significantly inhibit closely related kinases such as cdk2 or cdk5.

About this Structure

1Q5K is a Single protein structure of sequence from Homo sapiens. Full crystallographic information is available from OCA.

Reference

Structural insights and biological effects of glycogen synthase kinase 3-specific inhibitor AR-A014418., Bhat R, Xue Y, Berg S, Hellberg S, Ormo M, Nilsson Y, Radesater AC, Jerning E, Markgren PO, Borgegard T, Nylof M, Gimenez-Cassina A, Hernandez F, Lucas JJ, Diaz-Nido J, Avila J, J Biol Chem. 2003 Nov 14;278(46):45937-45. Epub 2003 Aug 19. PMID:12928438 Page seeded by OCA on Sat May 3 05:53:27 2008

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