Disease:Abnormalities of alpha-catenin are involved in the process of cancer invasion and metastasis. ,Function: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. May play a crucial role in cell differentiation. ,PTM:Sumoylated. ,similarity:Belongs to the vinculin/alpha-catenin family. ,subcellular location:Found at cell-cell boundaries and probably at cell-matrix boundaries. ,subunit:Binds MLLT4 and F-actin (By similarity) . Interacts directly with PSEN1 and CTNNB1 to form part of the PSEN1/cadherin/catenin adhesion complex. Interacts with ARHGAP21 and with JUB. ,tissue specificity:Expressed ubiquitously in normal tissues. ,
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