Effect of cell swelling on membrane and cytoplasmic distribution of pICln.
Effect of cell swelling on membrane and cytoplasmic distribution of pICln.
复制标题
细胞肿胀对 pICln 膜和细胞质分布的影响。
DOI:
10.1152/ajpcell.1998.274.6.c1545
复制
发表时间:
1998
期刊:
影响因子:
--
通讯作者:
Strange,K
中科院分区:
文献类型:
--
作者:
Emma,F;Breton,S;Morrison,R;Wright,S;Strange,K
pIClnis found ubiquitously in mammalian cells and is postulated to play a critical role in cell volume regulation. Mutagenesis studies led to the proposal that pIClnis a swelling-activated anion channel. However, recent studies in Madin-Darby canine kidney cells and endothelial cells have shown that the protein is localized primarily to the cytoplasm. It has therefore been postulated that activation involves reversible translocation of pIClnfrom the cytoplasm and insertion into the plasma membrane. We tested this hypothesis using several different approaches. Fractionation of C6glioma cells into plasma membrane- and cytoplasm-containing fractions demonstrated that ∼90% of the recovered pIClnwas confined to the cytosol. Swelling had no effect on the relative amount of protein present in the plasma membrane fraction. Immunofluorescence microscopy revealed that pIClnis localized primarily, if not exclusively, to the cytoplasm of swollen and nonswollen cells. Similarly, transfection of cells with a green fluorescent protein-labeled pIClnconstruct failed to reveal any membrane localization of the protein. These findings do not support the hypothesis that pIClnis a volume regulatory anion channel activated by swelling-induced membrane insertion.
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DOI:
10.1042/bj3270609
发表时间:
1997
期刊:
The Biochemical journal
影响因子:
--
作者:
Schwartz,RS;Rybicki,AC;Nagel,RL
通讯作者:
Nagel,RL
影响因子:
64.8
作者:
M. Paulmichl;Yi Li;K. Wickman;M. Ackerman;E. Peralta;D. Clapham
通讯作者:
D. Clapham
DOI:
10.1146/annurev.physiol.60.1.719
发表时间:
1998
期刊:
Annual review of physiology.
影响因子:
--
作者:
Kirk,K;Strange,K
通讯作者:
Strange,K
影响因子:
16.2
作者:
KAWASAKI, M;UCHIDA, S;SASAKI, S
通讯作者:
SASAKI, S
DOI:
10.1085/jgp.111.5.617
发表时间:
1998
期刊:
The Journal of general physiology
影响因子:
--
作者:
Strange,K
通讯作者:
Strange,K