Hunter Tony
Salk Institute, San Diego, CA 92138, U.S.A.
Trends Biochem Sci. 1982 Jul;7(7):246-249. doi: 10.1016/0968-0004(82)90035-4.
Tyrosine protein kinases carry out a newly described form of protein modification - phosphorylation of tyrosine residues. The transforming proteins of certain tumor viruses are tyrosine protein kinases and unscheduled phosphorylation of tyrosine in cellular proteins appears to be crucial for malignant transformation by these viruses. A primary effect of two cellular growth factors is to activate intracellular tyrosine protein kinases.
酪氨酸蛋白激酶能进行一种新描述的蛋白质修饰形式——酪氨酸残基的磷酸化。某些肿瘤病毒的转化蛋白就是酪氨酸蛋白激酶,细胞蛋白中酪氨酸的异常磷酸化似乎对这些病毒的恶性转化至关重要。两种细胞生长因子的主要作用是激活细胞内的酪氨酸蛋白激酶。