Paxillin(pax) is a key regulatory factor of the actin cytoskeleton that possesses latent energy of response to extracellular stimulation and functions as a molecular adapor of structure and signal transduction to facilitate a few signaling pathways.

• 桩蛋白(paxillin；Pax)作为细胞骨架蛋白的关键调节蛋白之一；具有对细胞外刺激发应的潜能；在多种信号转导途径中起到结构和信号转导的承接作用.