Lnk is a member of a newly discovered adaptor protein family. It negatively regulates the Jak-STAT,Ras/MAPK,PI3K signaling pathways.

• Lnk是新近发现的一种连接蛋白,在蛋白酪氨酸激酶(Jak)信号转导子和转录激活子(STAT)、Ras蛋白/丝裂原活化蛋白激酶(MAPK)、磷脂酰肌醇3激酶(PI3K)等信号转导途径中发挥负性调节作用。