|
Alpha-catenin was suggested to function as a linking protein between cadherins and actin-containing filaments of the cytoskeleton. It has been reported that the actin binding proteins vinculin and alpha-actinin can bind to alpha-catenin. However, a protein complex including a cadherin, actin, beta-catenin and alpha-catenin has not been isolated. It has been suggested that alpha-catenin does not bind with high affinity to both actin filaments and the E-cadherin-beta-catenin complex at the same time. It has been observed that when alpha-catenin is not in a molecular complex with beta-catenin, it dimerizes and functions to regulate actin filament assembly, possibly by competing with Arp2/3 protein. The amino acid sequence of alpha-catenin has sequence similarity to that of vinculin. ==Types== There are three human alpha-catenin genes: * alpha-1-catenin (also called alpha-E-catenin) * alpha-2-catenin (also called alpha-N-catenin) * alpha-3-catenin (also called alpha-T-catenin) 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Alpha catenin」の詳細全文を読む スポンサード リンク
|