COMPARATIVE ANALYSIS OF JUN PROTEIN FUNCTION

拟议研究的长期目标是阐明这一角色 Jun基因(c-Jun、Jun-B和Jun-D)在细胞调控中的作用 扩散。因为目前对生理学知识知之甚少 Jun基因表达的后果，一种广泛的方法是初步 建议。具体目标包括比较转录 三种Jun蛋白的调控活性和致癌潜能。在……里面 此外，如果这些实验中存在明显的功能差异，那就是 预计绘制蛋白质结构域图将非常重要 有助于差异化活动，因为获得的信息可能是 在识别Jun蛋白调控的基因方面很有用。伴随而来的是， 描述了两种研究细胞和分子的方法。 Jun基因表达的后果。一种策略涉及到生成 条件性Jun(-)细胞系通过可调节的负性 补充Jun蛋白。另一种依赖于jun基因的表达。 在转基因小鼠品系的正常组织隔间内。AS 本项目开展后，将把精力集中在 在识别JUN调控基因方面最有希望。

The long term objective of the proposed research is to elucidate the role of the jun genes (c-jun, jun-B, and jun-D) in regulating cellular proliferation. Because little is presently known about the physiological consequences of jun gene expression, a broad approach is initially suggested. Specific objectives include comparing the transcriptional regulatory activity and oncogenic potential of the three Jun proteins. In addition, if functional differences manifest in these experiments, it is anticipated that it will be important to map the protein domains that contribute to differential activity because the information obtained may be useful in identifying the genes that Jun proteins regulate. Concomitantly, two approaches are described for studying the cellular and molecular consequences of jun gene expression. One strategy involves generating conditionally jun (-) cell lines through a regulable negatively complementing Jun protein. The other relies upon expression of a jun gene within its normal tissue compartments in a transgenic mouse strain. As this project develops, effort will be concentrated on the experiments that hold the most promise for identifying jun regulated genes.