View source for 4igg


==Full-length human alpha-catenin crystal structure==
<StructureSection load='4igg' size='340' side='right'caption='[[4igg]], [[Resolution|resolution]] 3.66&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[4igg]] is a 2 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=4IGG OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=4IGG 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]] 3.66&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=PO4:PHOSPHATE+ION'>PO4</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=4igg FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4igg OCA], [https://pdbe.org/4igg PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=4igg RCSB], [https://www.ebi.ac.uk/pdbsum/4igg PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=4igg ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/CTNA1_HUMAN CTNA1_HUMAN] Associates with the cytoplasmic domain of a variety of cadherins. The association of catenins to cadherins produces a complex which is linked to the actin filament network, and which seems to be of primary importance for cadherins cell-adhesion properties. Can associate with both E- and N-cadherins. Originally believed to be a stable component of E-cadherin/catenin adhesion complexes and to mediate the linkage of cadherins to the actin cytoskeleton at adherens junctions. In contrast, cortical actin was found to be much more dynamic than E-cadherin/catenin complexes and CTNNA1 was shown not to bind to F-actin when assembled in the complex suggesting a different linkage between actin and adherens junctions components. The homodimeric form may regulate actin filament assembly and inhibit actin branching by competing with the Arp2/3 complex for binding to actin filaments. May play a crucial role in cell differentiation.

==See Also==
*[[Catenin 3D structures|Catenin 3D structures]]
__TOC__
</StructureSection>
[[Category: Homo sapiens]]
[[Category: Large Structures]]
[[Category: Izard T]]
[[Category: Rangarajan ES]]