凯尔奇编码了Drosophila卵室中细胞间桥梁的一个组成部分
1Department of Genetics, Yale University School of Medicine, New Haven, Connecticut 06510.
Cell
|March 12, 1993
概括
凯尔奇基因产物对于调节Drosophila的护士细胞和卵细胞之间的细胞质运输至关重要. 这种蛋白质定位到环通道,表明在卵细胞成熟期间控制细胞间通信的作用.
科学领域:
- 发展生物学 发展生物学
- 细胞生物学 细胞生物学
- 遗传学 是一个遗传学.
背景情况:
- 果虫的卵细胞成熟依赖于护士细胞通过环通道将细胞质转移到卵细胞.
- 凯尔奇突变破坏了这一关键的细胞质运输过程,导致女性不育.
研究的目的:
- 为了克隆和表征凯尔奇基因.
- 阐明凯尔奇调节细胞质运输的分子机制.
主要方法:
- 基因克隆和基因序列基因基因基因基因基因基因基因基因基因基因基因基因基因基因基因基因基因基因基因基因基因基因基因基因基因基因.
- 对鱼mRNA和蛋白质产品的分析,包括替代翻译启动.
- 使用抗体对抗鱼ORF1产品的免疫定位研究.
主要成果:
- 凯尔奇基因编码了一个不寻常的转录与两个开放的读取框架 (ORFs).
- 从鱼mRNA生成两个蛋白质产品,通过部分抑制UGA停止编码子.
- 鱼ORF1产物是保存的,并且特别局部化到环状通道.
结论:
- 凯尔奇基因产生环通道的组成部分,对于调节细胞质流动至关重要.
- 凯尔奇蛋白可能在环通道内作为分子调节剂,以促进细胞间传输在 oogenesis.
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