View source for 7oak


==Crystal structure of pseudokinase CASK in complex with compound 26==
<StructureSection load='7oak' size='340' side='right'caption='[[7oak]], [[Resolution|resolution]] 2.23&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[7oak]] is a 4 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=7OAK OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=7OAK FirstGlance]. <br>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.23&#8491;</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=V6B:2-[[2,5-bis(bromanyl)-4-methyl-phenyl]methylamino]-4-(cyclopentylamino)-N-[3-(2-oxidanylidene-1,3-oxazolidin-3-yl)propyl]pyrimidine-5-carboxamide'>V6B</scene></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=7oak FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=7oak OCA], [https://pdbe.org/7oak PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=7oak RCSB], [https://www.ebi.ac.uk/pdbsum/7oak PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=7oak ProSAT]</span></td></tr>
</table>
== Disease ==
[https://www.uniprot.org/uniprot/CSKP_HUMAN CSKP_HUMAN] Defects in CASK are the cause of mental retardation and microcephaly with pontine and cerebellar hypoplasia (MICPCH) [MIM:[https://omim.org/entry/300749 300749]. A disorder characterized by significantly below average general intellectual functioning associated with impairments in adaptative behavior and manifested during the developmental period. Patients with mental retardation X-linked CASK-related can manifest a severe phenotype consisting of severe intellectual deficit, congenital or postnatal microcephaly, disproportionate brainstem and cerebellar hypoplasia. A milder phenotype consists of mental retardation alone or associated with nystagmus.<ref>PMID:19165920</ref>   Defects in CASK are the cause of FG syndrome type 4 (FGS4) [MIM:[https://omim.org/entry/300422 300422]. FG syndrome (FGS) is an X-linked disorder characterized by mental retardation, relative macrocephaly, hypotonia and constipation.<ref>PMID:19200522</ref> 
== Function ==
[https://www.uniprot.org/uniprot/CSKP_HUMAN CSKP_HUMAN] Multidomain scaffolding protein with a role in synaptic transmembrane protein anchoring and ion channel trafficking. Contributes to neural development and regulation of gene expression via interaction with the transcription factor TRB1. Binds to cell-surface proteins, including amyloid precursor protein, neurexins and syndecans. May mediate a link between the extracellular matrix and the actin cytoskeleton via its interaction with syndecan and with the actin/spectrin-binding protein 4.1.
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
CASK (Ca(2+)/calmodulin-dependent Ser/Thr kinase) is a member of the MAGUK (membrane-associated guanylate kinase) family that functions as neurexin kinases with roles implicated in neuronal synapses and trafficking. The lack of a canonical DFG motif, which is altered to GFG in CASK, led to the classification as a pseudokinase. However, functional studies revealed that CASK can still phosphorylate substrates in the absence of divalent metals. CASK dysfunction has been linked to many diseases, including colorectal cancer, Parkinson's disease, and X-linked mental retardation, suggesting CASK as a potential drug target. Here, we exploited structure-based design for the development of highly potent and selective CASK inhibitors based on 2,4-diaminopyrimidine-5-carboxamides targeting an unusual pocket created by the GFG motif. The presented inhibitor design offers a more general strategy for the development of pseudokinase ligands that harbor unusual sequence motifs. It also provides a first chemical probe for studying the biological roles of CASK.

Design and Development of a Chemical Probe for Pseudokinase Ca(2+)/calmodulin-Dependent Ser/Thr Kinase.,Russ N, Schroder M, Berger BT, Mandel S, Aydogan Y, Mauer S, Pohl C, Drewry DH, Chaikuad A, Muller S, Knapp S J Med Chem. 2021 Oct 14;64(19):14358-14376. doi: 10.1021/acs.jmedchem.1c00845., Epub 2021 Sep 20. PMID:34543009<ref>PMID:34543009</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 7oak" style="background-color:#fffaf0;"></div>
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Homo sapiens]]
[[Category: Large Structures]]
[[Category: Chaikuad A]]
[[Category: Knapp S]]
[[Category: Russ N]]