首页> 美国卫生研究院文献>Proceedings of the National Academy of Sciences of the United States of America >Isolation of Drosophila cyclin D a protein expressed in the morphogenetic furrow before entry into S phase.
【2h】

Isolation of Drosophila cyclin D a protein expressed in the morphogenetic furrow before entry into S phase.

机译:果蝇细胞周期蛋白D的分离该蛋白在进入S期之前在形态发生沟中表达。

代理获取
本网站仅为用户提供外文OA文献查询和代理获取服务,本网站没有原文。下单后我们将采用程序或人工为您竭诚获取高质量的原文,但由于OA文献来源多样且变更频繁,仍可能出现获取不到、文献不完整或与标题不符等情况,如果获取不到我们将提供退款服务。请知悉。

摘要

During Drosophila development, nuclear and cell divisions are coordinated in response to developmental signals. In yeast and mammalian cells, signals that control cell division regulate the activity of cyclin-dependent kinases (Cdks) through proteins such as cyclins that interact with the Cdks. Here we describe two Drosophila cyclins identified from a set of Cdk-interacting proteins. One, cyclin J, is of a distinctive sequence type; its exclusive maternal expression pattern suggests that it may regulate oogenesis or the early nuclear divisions of embryogenesis. The other belongs to the D class of cyclins, previously identified in mammalian cells. We show that Drosophila cyclin D is expressed in early embryos and in imaginal disc cells in a pattern that anticipates cell divisions. Expression in the developing eye disc at the anterior edge of the morphogenetic furrow suggests that cyclin D acts early, prior to cyclin E, in inducing G1-arrested cells to enter S phase. Our results also suggest that, although cyclin D may be necessary, its expression alone is not sufficient to initiate the events leading to S phase.
机译:果蝇发育过程中,响应于发育信号协调核和细胞分裂。在酵母和哺乳动物细胞中,控制细胞分裂的信号通过蛋白质(例如与Cdks相互作用的细胞周期蛋白)调节细胞周期蛋白依赖性激酶(Cdks)的活性。在这里,我们描述了从一组Cdk相互作用蛋白中鉴定出的两个果蝇细胞周期蛋白。一种是细胞周期蛋白J,是独特的序列类型。其独特的母体表达模式表明它可能调控卵子发生或胚胎发生的早期核分裂。另一个属于先前在哺乳动物细胞中鉴定的细胞周期蛋白D类。我们显示果蝇细胞周期蛋白D在早期的胚胎和想象中的椎间盘细胞中以预示细胞分裂的模式表达。在形态发生犁沟前缘发育中的眼盘中的表达表明,细胞周期蛋白D在细胞周期蛋白E之前先作用,诱导被G1阻滞的细胞进入S期。我们的结果还表明,尽管细胞周期蛋白D可能是必需的,但仅其表达尚不足以引发导致S期的事件。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
代理获取

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号