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整合素［１］家族为粘附分子中一类由一个ａｌｆａ亚单位与一个ｂｅｔａ亚单位以非共价键连接而成的异二聚体胯膜糖蛋白．目前已知的亚单位有２５种ａｌｆａ亚单位及１１种ｂｅｔａ亚单位，形成２０余种不同的整合素．ａｌｆａ，ｂｅｔａ亚单位氨基端的球形域相互连接构成整合
The integrin [1] family is a heterodimeric capsular glycoprotein in adhesion molecules that is formed by non-covalent linkage of an alfa subunit and a beta subunit. Currently known subunits have 25 types of alfa subunits and 11 beta subunits, forming more than 20 different integrins. Alfa, the amino domains of the beta subunits are interconnected to form an integration