Rab7调控着从内体到溶酶体以及从内体到高尔基体的囊泡运输过程;也参与了自噬、吞噬过程;同时还调节着溶酶体及其相关细胞器的生成过程。Rab7的功能受到各种相互作用因子的调控;Rab7的功能异常会导致包括神经退行性疾病和肿瘤在内的多种疾病。前期实验发现Rab7与Src在早期内体和晚期内体共定位,另有报道v-Src可激活Rab7,但是Src对Rab7的调节机制尚不清楚。 本研究发现Src、Blk等酪氨酸激酶可磷酸化修饰Rab7,其磷酸化位点为第183位酪氨酸残基。体外磷酸化实验提示Src可以直接磷酸化Rab7。Rab7的磷酸化依赖于Src以及Rab7的活性。EGF刺激可以诱导Rab7磷酸化,该过...Rab7 is a key regulator of vesicular trafficking from endosome to lysosome and Golgi apparatus.It also plays a role in autophagy,phagocytosis as well as the biogenesis of LRO(lysosome related organelles).The function of Rab7 is regulated by its effectors,and dysfunction of Rab7 results in several diseases including neurodegeneration and cancer. Our previous research data shows colocalization of Ra...学位:理学博士院系专业:药学院_化学生物学学号:3232012015395