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| | ==Solution Structure of the N-terminal domain of kindlin-1== | | ==Solution Structure of the N-terminal domain of kindlin-1== |
| - | <StructureSection load='2kmc' size='340' side='right'caption='[[2kmc]], [[NMR_Ensembles_of_Models | 20 NMR models]]' scene=''> | + | <StructureSection load='2kmc' size='340' side='right'caption='[[2kmc]]' scene=''> |
| | == Structural highlights == | | == Structural highlights == |
| - | <table><tr><td colspan='2'>[[2kmc]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Lk3_transgenic_mice Lk3 transgenic mice]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2KMC OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2KMC FirstGlance]. <br> | + | <table><tr><td colspan='2'>[[2kmc]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Mus_musculus Mus musculus]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2KMC OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2KMC FirstGlance]. <br> |
| - | </td></tr><tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">Fermt1, Kind1, Urp1 ([https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=10090 LK3 transgenic mice])</td></tr> | + | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">Solution NMR</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=2kmc FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2kmc OCA], [https://pdbe.org/2kmc PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2kmc RCSB], [https://www.ebi.ac.uk/pdbsum/2kmc PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2kmc 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=2kmc FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2kmc OCA], [https://pdbe.org/2kmc PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2kmc RCSB], [https://www.ebi.ac.uk/pdbsum/2kmc PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2kmc ProSAT]</span></td></tr> |
| | </table> | | </table> |
| | == Function == | | == Function == |
| - | [[https://www.uniprot.org/uniprot/FERM1_MOUSE FERM1_MOUSE]] Involved in cell adhesion. Contributes to integrin activation. When coexpressed with talin, potentiates activation of ITGA2B. Required for normal keratinocyte proliferation. Required for normal polarization of basal keratinocytes in skin, and for normal cell shape. Required for normal adhesion of keratinocytes to fibronectin and laminin, and for normal keratinocyte migration to wound sites (By similarity).
| + | [https://www.uniprot.org/uniprot/FERM1_MOUSE FERM1_MOUSE] Involved in cell adhesion. Contributes to integrin activation. When coexpressed with talin, potentiates activation of ITGA2B. Required for normal keratinocyte proliferation. Required for normal polarization of basal keratinocytes in skin, and for normal cell shape. Required for normal adhesion of keratinocytes to fibronectin and laminin, and for normal keratinocyte migration to wound sites (By similarity). |
| | == Evolutionary Conservation == | | == Evolutionary Conservation == |
| | [[Image:Consurf_key_small.gif|200px|right]] | | [[Image:Consurf_key_small.gif|200px|right]] |
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| | </StructureSection> | | </StructureSection> |
| | [[Category: Large Structures]] | | [[Category: Large Structures]] |
| - | [[Category: Lk3 transgenic mice]] | + | [[Category: Mus musculus]] |
| - | [[Category: Barsukov, I L]] | + | [[Category: Barsukov IL]] |
| - | [[Category: Bate, N]] | + | [[Category: Bate N]] |
| - | [[Category: Critchley, D R]] | + | [[Category: Critchley DR]] |
| - | [[Category: Goult, B T]] | + | [[Category: Goult BT]] |
| - | [[Category: Roberts, G C]] | + | [[Category: Roberts GC]] |
| - | [[Category: Cell adhesion]]
| + | |
| - | [[Category: Cell junction]]
| + | |
| - | [[Category: Cell membrane]]
| + | |
| - | [[Category: Cell projection]]
| + | |
| - | [[Category: Cytoplasm]]
| + | |
| - | [[Category: Cytoskeleton]]
| + | |
| - | [[Category: Integrin]]
| + | |
| - | [[Category: Kindlin]]
| + | |
| - | [[Category: Membrane]]
| + | |
| - | [[Category: N-terminal]]
| + | |
| - | [[Category: Phosphoprotein]]
| + | |
| - | [[Category: Talin]]
| + | |
| Structural highlights
Function
FERM1_MOUSE Involved in cell adhesion. Contributes to integrin activation. When coexpressed with talin, potentiates activation of ITGA2B. Required for normal keratinocyte proliferation. Required for normal polarization of basal keratinocytes in skin, and for normal cell shape. Required for normal adhesion of keratinocytes to fibronectin and laminin, and for normal keratinocyte migration to wound sites (By similarity).
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
The integrin family of heterodimeric cell adhesion molecules exists in both low- and high-affinity states, and integrin activation requires binding of the talin FERM (four-point-one, ezrin, radixin, moesin) domain to membrane-proximal sequences in the beta-integrin cytoplasmic domain. However, it has recently become apparent that the kindlin family of FERM domain proteins is also essential for talin-induced integrin activation. FERM domains are typically composed of F1, F2, and F3 domains, but the talin FERM domain is atypical in that it contains a large insert in F1 and is preceded by a previously unrecognized domain, F0. Initial sequence alignments showed that the kindlin FERM domain was most similar to the talin FERM domain, but the homology appeared to be restricted to the F2 and F3 domains. Based on a detailed characterization of the talin FERM domain, we have reinvestigated the sequence relationship with kindlins and now show that kindlins do indeed contain the same domain structure as the talin FERM domain. However, the kindlin F1 domain contains an even larger insert than that in talin F1 that disrupts the sequence alignment. The insert, which varies in length between different kindlins, is not conserved and, as in talin, is largely unstructured. We have determined the structure of the kindlin-1 F0 domain by NMR, which shows that it adopts the same ubiquitin-like fold as the talin F0 and F1 domains. Comparison of the kindlin-1 and talin F0 domains identifies the probable interface with the kindlin-1 F1 domain. Potential sites of interaction of kindlin F0 with other proteins are discussed, including sites that differ between kindlin-1, kindlin-2, and kindlin-3. We also demonstrate that F0 is required for the ability of kindlin-1 to support talin-induced alphaIIbbeta3 integrin activation and for the localization of kindlin-1 to focal adhesions.
The structure of the N-terminus of kindlin-1: a domain important for alphaiibbeta3 integrin activation.,Goult BT, Bouaouina M, Harburger DS, Bate N, Patel B, Anthis NJ, Campbell ID, Calderwood DA, Barsukov IL, Roberts GC, Critchley DR J Mol Biol. 2009 Dec 18;394(5):944-56. Epub 2009 Oct 3. PMID:19804783[1]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
References
- ↑ Goult BT, Bouaouina M, Harburger DS, Bate N, Patel B, Anthis NJ, Campbell ID, Calderwood DA, Barsukov IL, Roberts GC, Critchley DR. The structure of the N-terminus of kindlin-1: a domain important for alphaiibbeta3 integrin activation. J Mol Biol. 2009 Dec 18;394(5):944-56. Epub 2009 Oct 3. PMID:19804783 doi:10.1016/j.jmb.2009.09.061
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