AVIAN SARCOMA VIRUS SPECIFIC TUMOR ANTIGENS

遗传和生化实验表明，劳斯的产品 肉瘤病毒src基因是启动和维持 细胞转化 作为我们长期目标的一部分， src基因产物pp60src如何介导相关的分子事件 在细胞转化中，我们分离并部分表征了 针对PP60src的单克隆抗体。 概述的实验 在该建议中，使用单克隆抗体来针对 pp60src作为免疫化学探针来定义和表征结构 和功能域的分子，并试图阐明的作用， 介导细胞转化的单个功能结构域。 我们 进一步提出利用抗pp60src的单克隆抗体作为 免疫化学探针，以比较其他 逆转录病毒酪氨酸蛋白激酶以及正常细胞酪氨酸蛋白 激酶。 这些研究将使我们能够确定结构和 pp60src的功能域，并允许我们将这些信息与 可以是相关酪氨酸蛋白家族成员的其它蛋白质 激酶。

Genetic and biochemical experiments have shown that the product of the Rous sarcoma virus src gene is required for the initiation and maintenance of cellular transformation. As a part of our long-term goal of understanding how the src gene product, pp60src, mediates the molecular events involved in cellular transformation, we have isolated and partially characterized monoclonal antibodies directed against pp60src. The experiments outlined in this proposal employ monoclonal antibodies to unique determinants within pp60src as immunochemical probes to define and characterize the structural and functional domains of the molecule and attempt to elucidate the role of individual functional domains in mediating cellular transformation. We further propose to utilize monoclonal antibodies to pp60src as immunochemical probes to compare the structure and function of other retrovirus tyrosine protein kinase as well as normal cell tyrosine protein kinases. These studies will permit us to define the structural and functional domains of pp60src and allow us to relate this information to other proteins which may be members of a family of related tyrosine protein kinases.