Catenin alpha-1 Proteins

Protein Information

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 adherence 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.

Synonyms

[a]E-catenin; 102 kDa cadherin-associated protein; 2010010M04Rik; AA517462; AI988031; alpha E catenin; alpha E-catenin; alpha(E)-catenin; alpha-E-catenin; cadherin associated protein; Cadherin-associated protein; CAP102; catenin (cadherin associated protein), alpha 1; catenin (cadherin-associated protein), alpha; catenin (cadherin-associated protein), alpha 1; catenin (cadherin-associated protein), alpha 1, 102kDa; catenin alpha 1; catenin alpha 1 S homeolog; catenin alpha-1; catenin, alpha 1; Catna1; cell-adhesion protein alphaE catenin; ctnna; ctnna1; ctnna1.S; MDPT2; Renal carcinoma antigen NY-REN-13; XELAEV_18020018mg