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首页> 外文期刊>Proceedings of the National Academy of Sciences of the United States of America >A thyroid hormone receptor coactivator negatively regulated by the retinoblastoma protein
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A thyroid hormone receptor coactivator negatively regulated by the retinoblastoma protein

机译:视网膜母细胞瘤蛋白负调控的甲状腺激素受体共激活因子

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摘要

The retinoblastoma protein (Rb) plays a critical role in cell proliferation, differentiation, and devel- opment. To decipher the mechanism of Rb function at the molecular level, we have systematically characterized a num- ber of Rb-interacting proteins, among which is the clone C5 described here, which encodes a protein of 1,978 amino acids with an estimated molecular mass of 230 kDa. The corre- sponding gene was assigned to chromosome 14q31, the same region where genetic alterations have been associated with several abnormalities of thyroid hormone response. The pro- tein uses two distinct regions to bind Rb and thyroid hormone receptor (TR), respectively, and thus was named Trip230.
机译:视网膜母细胞瘤蛋白(Rb)在细胞增殖,分化和发育中起关键作用。为了在分子水平上解释Rb功能的机制,我们已经系统地表征了许多与Rb相互作用的蛋白质,其中包括此处所述的克隆C5,该克隆编码1,978个氨基酸的蛋白质,估计分子量为230 kDa。相应的基因被分配到14q31号染色体,在同一区域,遗传改变与甲状腺激素反应的几种异常有关。蛋白质使用两个不同的区域分别结合Rb和甲状腺激素受体(TR),因此被命名为Trip230。

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