2k9u: Difference between revisions
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== Structural highlights == | == Structural highlights == | ||
<table><tr><td colspan='2'>[[2k9u]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Human Human]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2K9U OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2K9U FirstGlance]. <br> | <table><tr><td colspan='2'>[[2k9u]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Human Human]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2K9U OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2K9U FirstGlance]. <br> | ||
</td></tr><tr><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2k9u FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2k9u OCA], [http://www.rcsb.org/pdb/explore.do?structureId=2k9u RCSB], [http://www.ebi.ac.uk/pdbsum/2k9u PDBsum]</span></td></tr> | </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=2k9u FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2k9u OCA], [http://www.rcsb.org/pdb/explore.do?structureId=2k9u RCSB], [http://www.ebi.ac.uk/pdbsum/2k9u PDBsum]</span></td></tr> | ||
<table> | </table> | ||
== Function == | |||
[[http://www.uniprot.org/uniprot/FBLI1_HUMAN FBLI1_HUMAN]] Serves as an anchoring site for cell-ECM adhesion proteins and filamin-containing actin filaments. Is implicated in cell shape modulation (spreading) and motility. May participate in the regulation of filamin-mediated cross-linking and stabilization of actin filaments. May also regulate the assembly of filamin-containing signaling complexes that control actin assembly. Promotes dissociation of FLNA from ITGB3 and ITGB7. Promotes activation of integrins and regulates integrin-mediated cell-cell adhesion.<ref>PMID:12679033</ref> <ref>PMID:12496242</ref> <ref>PMID:18829455</ref> <ref>PMID:19074766</ref> | |||
<div style="background-color:#fffaf0;"> | <div style="background-color:#fffaf0;"> | ||
== Publication Abstract from PubMed == | == Publication Abstract from PubMed == | ||
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</StructureSection> | </StructureSection> | ||
[[Category: Human]] | [[Category: Human]] | ||
[[Category: Ithychanda, S N | [[Category: Ithychanda, S N]] | ||
[[Category: Qin, J | [[Category: Qin, J]] | ||
[[Category: Cell adhesion]] | [[Category: Cell adhesion]] | ||
[[Category: Cell junction]] | [[Category: Cell junction]] | ||
Revision as of 06:25, 25 December 2014
Solution NMR structure of the Filamin-migfilin complexSolution NMR structure of the Filamin-migfilin complex
Structural highlights
Function[FBLI1_HUMAN] Serves as an anchoring site for cell-ECM adhesion proteins and filamin-containing actin filaments. Is implicated in cell shape modulation (spreading) and motility. May participate in the regulation of filamin-mediated cross-linking and stabilization of actin filaments. May also regulate the assembly of filamin-containing signaling complexes that control actin assembly. Promotes dissociation of FLNA from ITGB3 and ITGB7. Promotes activation of integrins and regulates integrin-mediated cell-cell adhesion.[1] [2] [3] [4] Publication Abstract from PubMedThe linkage of heterodimeric (alpha/beta) integrin receptors with their extracellular matrix ligands and intracellular actin cytoskeleton is a fundamental step for controlling cell adhesion and migration. Binding of the actin-linking protein, talin, to integrin beta cytoplasmic tails (CTs) induces high affinity ligand binding (integrin activation), whereas binding of another actin-linking protein, filamin, to the integrin beta CTs negatively regulates this process by blocking the talin-integrin interaction. Here we show structurally that migfilin, a novel cytoskeletal adaptor highly enriched in the integrin adhesion sites, strongly interacts with the same region in filamin where integrin beta CTs bind. We further demonstrate that the migfilin interaction dissociates filamin from integrin and promotes the talin/integrin binding and integrin activation. Migfilin thus acts as a molecular switch to disconnect filamin from integrin for regulating integrin activation and dynamics of extracellular matrix-actin linkage. Migfilin, a molecular switch in regulation of integrin activation.,Ithychanda SS, Das M, Ma YQ, Ding K, Wang X, Gupta S, Wu C, Plow EF, Qin J J Biol Chem. 2009 Feb 13;284(7):4713-22. doi: 10.1074/jbc.M807719200. Epub 2008, Dec 13. PMID:19074766[5] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See AlsoReferences
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