The cystic fibrosis mutation (ΔF508) does not influence the chloride channel activity of CFTR

The cystic fibrosis mutation (ΔF508) does not influence the chloride channel activity of CFTR
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囊性纤维化突变(ΔF508)不影响CFTR的氯离子通道活性

DOI:
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发表时间:
1993
期刊:
影响因子:
30.8
通讯作者:
C. Bear
C. Bear
中科院分区:
生物学1区
文献类型:
--
作者:
Canhui Li;M. Ramjeesingh;E. Reyes;T. Jensen;X. Chang;J. Rommens;C. Bear

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囊性纤维化跨膜传导调节因子(CFTR)是一种磷酸化调节的Ch−通道。在大多数哺乳动物细胞中,最常见的CF突变ΔF508-CFTR的功能后果无法评估,因为突变蛋白经历生物合成停滞。然而,可以在杆状病毒-昆虫细胞表达系统中研究功能,其中ΔF508-CFTR似乎不经历这种停滞。我们的研究结果表明,磷酸化调节的ΔF508-CFTR的Cl−通道活性与野生型CFTR相似。该观察结果在纯化的ΔF508-CFTR和在平面脂质双层中重构的CFTR的比较研究中得到证实。因此,我们认为这种常见突变不会导致CFTR功能的显著改变,
The cystic fibrosis transmembrane conductance regulator (CFTR) is a phosphorylation-regulated Ch− channel. In most mammalian cells, the functional consequences of the most common CF mutation, ΔF508-CFTR, cannot be assessed as the mutant protein undergoes biosynthetic arrest. However, function can be studied in the baculovirus-insect cell expression system where ΔF508-CFTR does not appear to undergo such arrest. Our results show that phosphorylation-regulated Cl− channel activity of ΔF508-CFTR is similar to that of wild-type CFTR. This observation was confirmed in comparative studies of purified ΔF508-CFTR and CFTR reconstituted in planar lipid bilayers. Therefore, we suggest that this Common mutation does not result in a significant alteration in CFTR function
DOI: 10.1126/science.2475911
发表时间: 1989-09
期刊: Science
影响因子: 56.9
作者:
J. Riordan;J. Rommens;N. Alon;R. Rozmahel;Z. Grzelczak;J. Zieleński;N. Plavsic;Jia-Ling Chou
通讯作者: J. Riordan;J. Rommens;N. Alon;R. Rozmahel;Z. Grzelczak;J. Zieleński;N. Plavsic;Jia-Ling Chou
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发表时间: 1989-09-08
期刊: SCIENCE
影响因子: 56.9
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KEREM, BS;ROMMENS, JM;TSUI, LC
通讯作者: TSUI, LC
DOI: 10.1016/s0006-3495(90)82429-2
发表时间: 1990
影响因子: 3.4
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通讯作者: Miller,C
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DOI: 10.1152/ajpcell.1992.262.1.c251
发表时间: 1992
期刊: The American journal of physiology
影响因子: --
作者:
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通讯作者: Reyes,EF