类受体相关的透激活通道 (VR-OAC),一个候选的脊椎动物透受体
W Liedtke1, Y Choe, M A Martí-Renom
1Laboratory of Molecular Genetics, The Rockefeller University, New York, New York 10021, USA.
Cell
|November 18, 2000
概括
研究人员发现了一种新型蛋白质,即与类受体相关的透激活通道 (VR-OAC),对于检测脊椎动物的透变化至关重要. 这个离子通道在感知身体水平衡方面发挥着关键作用.
科学领域:
- 生理学 生理学 生理学
- 分子生物学分子生物学
- 神经科学是一个神经科学.
背景情况:
- 检测透刺激对生命至关重要,但已知的透感应蛋白质很少,特别是在脊椎动物中.
- 离子通道的TRP超级家族是奥斯摩受体的潜在来源.
研究的目的:
- 在脊椎动物中识别和表征新型透感应蛋白质.
- 为了研究新发现的度受体的功能和分布.
主要方法:
- 候选基因方法侧重于TRP超级家族离子通道.
- 从老鼠,小鼠,人类和中克隆编码与类受体相关的透激活通道 (VR-OAC) 的cDNA.
- 通过低压度分析道门及其表达模式.
主要成果:
- 成功克隆了来自多种脊椎动物物种的VR-OACcDNA.
- 证明VR-OAC是一种由生理性低压性激活的阳离子选择性通道.
- 在关键的神经感官细胞中确定VR-OAC表达,包括周心器官,内耳毛细胞,感官神经元和默克尔细胞.
结论:
- VR-OAC是一种新型的脊椎动物吸收蛋白.
- 该通道参与感知系统性透压力,并表达在各种神经传感通路中.
- VR-OAC的发现为了解透调节和相关的生理过程开辟了新的途径.
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