这个基因编码酪氨酸蛋白激酶家族的一个成员。编码蛋白通过内皮受体酪氨酸激酶tie2抑制血管生成素1信号传导，在血管生成和血管稳定性中发挥重要作用。编码蛋白的外区裂解解除了对Tie2的抑制，并由多种因素介导，包括血管内皮生长因子另外，已经观察到该基因编码多个亚型的剪接转录变体[由RefSeq提供，2011年11月]
This gene encodes a member of the tyrosine protein kinase family. The encoded protein plays a critical role in angiogenesis and blood vessel stability by inhibiting angiopoietin 1 signaling through the endothelial receptor tyrosine kinase Tie2. Ectodomain cleavage of the encoded protein relieves inhibition of Tie2 and is mediated by multiple factors including vascular endothelial growth factor. Alternatively spliced transcript variants encoding multiple isoforms have been observed for this gene. [provided by RefSeq, Nov 2011]