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
复制标题
囊性纤维化突变(ΔF508)不影响CFTR的氯离子通道活性
作者:
Canhui Li;M. Ramjeesingh;E. Reyes;T. Jensen;X. Chang;J. Rommens;C. Bear
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
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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
影响因子:
56.9
作者:
KEREM, BS;ROMMENS, JM;TSUI, LC
通讯作者:
TSUI, LC
影响因子:
3.4
作者:
Woodbury,DJ;Miller,C
通讯作者:
Miller,C
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:
Bear,CE;Reyes,EF
通讯作者:
Reyes,EF