SLMAP Antibody #34161

Sarcolemmal membrane-associated protein (SLMAP) is a tail-anchored membrane protein involved in the docking and membrane fusion process (1). It is also a component of a conserved striatin-interacting phosphatase and kinase complex (STRIPAK) which participates in a variety of cellular processes, including signaling, cell cycle control, cell migration, Golgi assembly, and apoptosis (2-4). There are several isoforms of SLMAP as a result of alternative splicing; shorter isoforms exhibit high expression in cardiac muscle, whereas the longer isoforms are expressed more ubiquitously, but at lower levels (5). As a cardiac membrane protein, SLMAP plays an important role in excitation-contraction coupling and the adrenergic response, and has been identified as a novel regulator of cardiac function (6-8). In support of that function, mutations in the SLMAP gene are associated with Brugada syndrome, a cardiac channelopathy (9). Deregulation of SLMAP expression has also been implicated in type 2 diabetes, and changes in SLMAP expression are linked to hyperglycemia and diabetes (10). Additionally, a novel SLMAP-ALK fusion has been identified in a patient with non-small cell lung cancer (11).