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1kgd

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Revision as of 00:56, 12 September 2015

Crystal Structure of the Guanylate Kinase-like Domain of Human CASK

Structural highlights

1kgd is a 1 chain structure with sequence from Human. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum

Disease

[CSKP_HUMAN] Defects in CASK are the cause of mental retardation and microcephaly with pontine and cerebellar hypoplasia (MICPCH) [MIM: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.^[1] Defects in CASK are the cause of FG syndrome type 4 (FGS4) [MIM:300422]. FG syndrome (FGS) is an X-linked disorder characterized by mental retardation, relative macrocephaly, hypotonia and constipation.^[2]

Function

[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.

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

CASK is a member of the membrane-associated guanylate kinases (MAGUK) homologs, a family of proteins that scaffold protein complexes at particular regions of the plasma membrane by utilizing multiple protein-binding domains. The GK domain of MAGUKs, which shares high similarity in amino acid sequence with yeast guanylate kinase (yGMPK), is the least characterized MAGUK domain both in structure and function. In addition to its scaffolding function, the GK domain of hCASK has been shown to be involved in transcription regulation. Here we report the crystal structure of the GK domain of human CASK (hCASK-GK) at 1.3-A resolution. The structure rationalizes the inability of the GK domain to catalyze phosphoryl transfer and strongly supports its new function as a protein-binding module. Comparison of the hCASK-GK structure with the available crystal structures of yGMPK provides insight into possible conformational changes that occur in hCASK upon GMP binding. These conformational changes may act to regulate hCASK-GK function in a nucleotide-dependent manner.

Structural basis for nucleotide-dependent regulation of membrane-associated guanylate kinase-like domains.,Li Y, Spangenberg O, Paarmann I, Konrad M, Lavie A J Biol Chem. 2002 Feb 8;277(6):4159-65. Epub 2001 Nov 29. PMID:11729206^[3]

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

References

↑ Najm J, Horn D, Wimplinger I, Golden JA, Chizhikov VV, Sudi J, Christian SL, Ullmann R, Kuechler A, Haas CA, Flubacher A, Charnas LR, Uyanik G, Frank U, Klopocki E, Dobyns WB, Kutsche K. Mutations of CASK cause an X-linked brain malformation phenotype with microcephaly and hypoplasia of the brainstem and cerebellum. Nat Genet. 2008 Sep;40(9):1065-7. doi: 10.1038/ng.194. PMID:19165920 doi:10.1038/ng.194
↑ Piluso G, D'Amico F, Saccone V, Bismuto E, Rotundo IL, Di Domenico M, Aurino S, Schwartz CE, Neri G, Nigro V. A missense mutation in CASK causes FG syndrome in an Italian family. Am J Hum Genet. 2009 Feb;84(2):162-77. doi: 10.1016/j.ajhg.2008.12.018. Epub 2009, Feb 5. PMID:19200522 doi:10.1016/j.ajhg.2008.12.018
↑ Li Y, Spangenberg O, Paarmann I, Konrad M, Lavie A. Structural basis for nucleotide-dependent regulation of membrane-associated guanylate kinase-like domains. J Biol Chem. 2002 Feb 8;277(6):4159-65. Epub 2001 Nov 29. PMID:11729206 doi:10.1074/jbc.M110792200

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

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/1kgd"

@@ Line 2: / Line 2: @@
 <StructureSection load='1kgd' size='340' side='right' caption='[[1kgd]], [[Resolution|resolution]] 1.31&Aring;' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[1kgd]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1KGD OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1KGD FirstGlance]. <br>
+<table><tr><td colspan='2'>[[1kgd]] 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=1KGD OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1KGD FirstGlance]. <br>
 </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=FMT:FORMIC+ACID'>FMT</scene></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=1kgd FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1kgd OCA], [http://www.rcsb.org/pdb/explore.do?structureId=1kgd RCSB], [http://www.ebi.ac.uk/pdbsum/1kgd 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=1kgd FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1kgd OCA], [http://pdbe.org/1kgd PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1kgd RCSB], [http://www.ebi.ac.uk/pdbsum/1kgd PDBsum]</span></td></tr>
 </table>
 == Disease ==
@@ 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 1kgd" style="background-color:#fffaf0;"></div>
 == References ==
 <references/>
 __TOC__
 </StructureSection>
-[[Category: Homo sapiens]]
+[[Category: Human]]
 [[Category: Konrad, M]]
 [[Category: Lavie, A]]

1kgd

From Proteopedia

Revision as of 00:56, 12 September 2015

Crystal Structure of the Guanylate Kinase-like Domain of Human CASK

Structural highlights

Disease

Function

Evolutionary Conservation

Publication Abstract from PubMed

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

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