金山科研平台，产品价格货期咨询微信：jinshanbio Molecule Information: alpha-Smooth Muscle Actin Aliases: SMA Background: alpha-Smooth Muscle Actin Actin makes up the most abundant protein in many eukaryotic cell types. It polymerizes forming microfilaments that have an array of functions including regulating contractility, motility, cytokinesis, phagocytosis, adhesion, cell morphology, and providing structural support. At least six types of Actin, falling into three categories, exist in higher eukaryotes. The three types, separated based on isoelectric point, include a (alpha-Skeletal, alpha-Cardiac, alpha-Smooth Muscle), beta (beta-Non-muscle) and gamma (gamma-Smooth Muscle, gamma-non-muscle) isoforms.