Caveolin-1(Cav-1), a 22 kDa integral membrane protein, is a principal component of caveolae membrane, and is implicated in cholesterol trafficking, and signaling transduction.

• 小窝蛋白Caveolin-1(Cav-1)是小窝的标志蛋白，调节细胞内物质转运及信号转导过程。