这个基因编码的蛋白质是一种肌动蛋白结合蛋白，它将肌动蛋白丝交联，并将肌动蛋白丝连接到膜糖蛋白编码蛋白参与重塑细胞骨架，影响细胞形态和迁移这种蛋白质与整合素、跨膜受体复合物和第二信使相互作用该基因缺陷是多种综合征的病因，包括室周结节性异位（pvnh1，pvnh4）、耳腭趾综合征（opd1，opd2）、额叶甲状腺炎发育不良（fmd）、梅尔尼克针综合征（mns）和x连锁先天性特发性肠假性梗阻（ciipx）。已发现该基因的两个编码不同亚型的转录变体。[由RefSeq提供，2009年3月]
The protein encoded by this gene is an actin-binding protein that crosslinks actin filaments and links actin filaments to membrane glycoproteins. The encoded protein is involved in remodeling the cytoskeleton to effect changes in cell shape and migration. This protein interacts with integrins, transmembrane receptor complexes, and second messengers. Defects in this gene are a cause of several syndromes, including periventricular nodular heterotopias (PVNH1, PVNH4), otopalatodigital syndromes (OPD1, OPD2), frontometaphyseal dysplasia (FMD), Melnick-Needles syndrome (MNS), and X-linked congenital idiopathic intestinal pseudoobstruction (CIIPX). Two transcript variants encoding different isoforms have been found for this gene.[provided by RefSeq, Mar 2009]