7c3m: Difference between revisions

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<StructureSection load='7c3m' size='340' side='right'caption='[[7c3m]], [[Resolution|resolution]] 3.60&Aring;' scene=''>
<StructureSection load='7c3m' size='340' side='right'caption='[[7c3m]], [[Resolution|resolution]] 3.60&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
<table><tr><td colspan='2'>[[7c3m]] is a 3 chain structure with sequence from [https://en.wikipedia.org/wiki/Human Human]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=7C3M OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=7C3M FirstGlance]. <br>
<table><tr><td colspan='2'>[[7c3m]] is a 3 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=7C3M OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=7C3M FirstGlance]. <br>
</td></tr><tr id='NonStdRes'><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=UNK:UNKNOWN'>UNK</scene></td></tr>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 3.6&#8491;</td></tr>
<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">FERMT3, KIND3, MIG2B, URP2 ([https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 HUMAN])</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=7c3m FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=7c3m OCA], [https://pdbe.org/7c3m PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=7c3m RCSB], [https://www.ebi.ac.uk/pdbsum/7c3m PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=7c3m 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=7c3m FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=7c3m OCA], [https://pdbe.org/7c3m PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=7c3m RCSB], [https://www.ebi.ac.uk/pdbsum/7c3m PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=7c3m ProSAT]</span></td></tr>
</table>
</table>
== Disease ==
== Disease ==
[[https://www.uniprot.org/uniprot/URP2_HUMAN URP2_HUMAN]] Leukocyte adhesion deficiency type III. The disease is caused by mutations affecting the gene represented in this entry.<ref>PMID:19064721</ref> <ref>PMID:19234463</ref> <ref>PMID:19234460</ref> <ref>PMID:18779414</ref> <ref>PMID:19617577</ref>
[https://www.uniprot.org/uniprot/URP2_HUMAN URP2_HUMAN] Leukocyte adhesion deficiency type III. The disease is caused by mutations affecting the gene represented in this entry.<ref>PMID:19064721</ref> <ref>PMID:19234463</ref> <ref>PMID:19234460</ref> <ref>PMID:18779414</ref> <ref>PMID:19617577</ref>  
== Function ==
== Function ==
[[https://www.uniprot.org/uniprot/URP2_HUMAN URP2_HUMAN]] Plays a central role in cell adhesion in hematopoietic cells. Acts by activating the integrin beta-1-3 (ITGB1, ITGB2 and ITGB3). Required for integrin-mediated platelet adhesion and leukocyte adhesion to endothelial cells. Required for activation of integrin beta-2 (ITGB2) in polymorphonuclear granulocytes (PMNs) (By similarity).<ref>PMID:18280249</ref> <ref>PMID:19064721</ref> <ref>PMID:19234463</ref> <ref>PMID:19234460</ref>  Isoform 2 may act as a repressor of NF-kappa-B and apoptosis.<ref>PMID:18280249</ref> <ref>PMID:19064721</ref> <ref>PMID:19234463</ref> <ref>PMID:19234460</ref
[https://www.uniprot.org/uniprot/URP2_HUMAN URP2_HUMAN] Plays a central role in cell adhesion in hematopoietic cells. Acts by activating the integrin beta-1-3 (ITGB1, ITGB2 and ITGB3). Required for integrin-mediated platelet adhesion and leukocyte adhesion to endothelial cells. Required for activation of integrin beta-2 (ITGB2) in polymorphonuclear granulocytes (PMNs) (By similarity).<ref>PMID:18280249</ref> <ref>PMID:19064721</ref> <ref>PMID:19234463</ref> <ref>PMID:19234460</ref>  Isoform 2 may act as a repressor of NF-kappa-B and apoptosis.<ref>PMID:18280249</ref> <ref>PMID:19064721</ref> <ref>PMID:19234463</ref> <ref>PMID:19234460</ref>  
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
Kindlin-1, -2, and -3 directly bind integrin beta cytoplasmic tails to regulate integrin activation and signaling. Despite their functional significance and links to several diseases, structural information on full-length kindlin proteins remains unknown. Here, we report the crystal structure of human full-length kindlin-3, which reveals a novel homotrimer state. Unlike kindlin-3 monomer, which is the major population in insect and mammalian cell expression systems, kindlin-3 trimer does not bind integrin beta cytoplasmic tail as the integrin-binding pocket in the F3 subdomain of 1 protomer is occluded by the pleckstrin homology (PH) domain of another protomer, suggesting that kindlin-3 is auto-inhibited upon trimer formation. This is also supported by functional assays in which kindlin-3 knockout K562 erythroleukemia cells reconstituted with the mutant kindlin-3 containing trimer-disrupting mutations exhibited an increase in integrin-mediated adhesion and spreading on fibronectin compared with those reconstituted with wild-type kindlin-3. Taken together, our findings reveal a novel mechanism of kindlin auto-inhibition that involves its homotrimer formation.
 
Structural basis of human full-length kindlin-3 homotrimer in an auto-inhibited state.,Bu W, Levitskaya Z, Loh ZY, Jin S, Basu S, Ero R, Yan X, Wang M, Ngan SFC, Sze SK, Tan SM, Gao YG PLoS Biol. 2020 Jul 9;18(7):e3000755. doi: 10.1371/journal.pbio.3000755., eCollection 2020 Jul. PMID:32644996<ref>PMID:32644996</ref>
 
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 7c3m" style="background-color:#fffaf0;"></div>
== References ==
== References ==
<references/>
<references/>
__TOC__
__TOC__
</StructureSection>
</StructureSection>
[[Category: Human]]
[[Category: Homo sapiens]]
[[Category: Large Structures]]
[[Category: Large Structures]]
[[Category: Basu, S]]
[[Category: Basu S]]
[[Category: Bu, W]]
[[Category: Bu W]]
[[Category: Ero, R]]
[[Category: Ero R]]
[[Category: Gao, Y G]]
[[Category: Gao YG]]
[[Category: Jin, S]]
[[Category: Jin S]]
[[Category: Loh, Z Y]]
[[Category: Loh ZY]]
[[Category: Park, J E]]
[[Category: Park JE]]
[[Category: Sze, S K]]
[[Category: Sze SK]]
[[Category: Tan, S M]]
[[Category: Tan SM]]
[[Category: Wang, M]]
[[Category: Wang M]]
[[Category: Yan, X]]
[[Category: Yan X]]
[[Category: Ferm protein]]
[[Category: Integrin]]
[[Category: Kindlin]]
[[Category: Signaling protein]]

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