該基因編碼在t細胞中表達的細胞內酪氨酸激酶。該蛋白包含sh2和sh3兩個結構域，它們通常存在于細胞內激酶中。它被認為在t細胞增殖和分化中起作用。[由RefSeq提供，2008年7月]
This gene encodes an intracellular tyrosine kinase expressed in T-cells. The protein contains both SH2 and SH3 domains which are often found in intracellular kinases. It is thought to play a role in T-cell proliferation and differentiation. [provided by RefSeq, Jul 2008]