Functional Studies of Synthetic Gramicidin Hybrid Ion Channels in CHO Cells
Functional Studies of Synthetic Gramicidin Hybrid Ion Channels in CHO Cells
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CHO 细胞中合成短杆菌肽混合离子通道的功能研究
DOI:
10.1002/cbic.200600384
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发表时间:
2007
期刊:
影响因子:
3.2
通讯作者:
O. Strauss
中科院分区:
文献类型:
--
作者:
R. Wesolowski;A. Sommer;H.-D. Arndt;U. Koert;P. Reiß;S. Wimmers;O. Strauss
The function of a gramicidin hybrid ion channel in living Chinese hamster ovary (CHO) cells was investigated by the patch clamp method. The synthetic ion channel1consists of two cyclohexyl ether amino acids that link two minigramicidin strands. With1at a concentration of 1.0 μM, an increase in the whole‐cell membrane conductance was observed after 1.37 min. The conductance showed larger currents when Cs+was used as charge carrier than when Na+and K+were used. In single‐channel recordings with Cs+as charge carrier, the substance showed comparable single‐channel amplitudes in the membrane of living cells and artificial black lipid bilayers. In addition to functioning as a cation channel, compound1appeared to be a water channel. Exposure of the CHO cells to an extracellular hypoosmotic solution did not substantially change the cell volume. Extracellular hypoosmotic conditions in the presence of1increased the cell size to 146.5 % that of the control. Thus, the synthetic hybrid channel1can function as a cation channel with some Cs+specificity, and as a water channel in CHO cells.
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影响因子:
--
作者:
P. Fidzinski;Andrea Knoll;R. Rosenthal;Anna K. Schrey;A. Vescovi;U. Koert;M. Wiederholt;O. Strauß
通讯作者:
O. Strauß
DOI:
10.1007/s13347-011-0047-2
发表时间:
--
期刊:
Philosophy and Technology
影响因子:
0.0
作者:
Robert C. Scharff
通讯作者:
Robert C. Scharff
影响因子:
3.5
作者:
G. Gokel;Paul H. Schlesinger;N. Djedovic;R. Ferdani;Egan Harder;Jiaxing Hu;W. Leevy;Jolanta Pajewska;Robert Pajewski;Michelle E. Weber
通讯作者:
G. Gokel;Paul H. Schlesinger;N. Djedovic;R. Ferdani;Egan Harder;Jiaxing Hu;W. Leevy;Jolanta Pajewska;Robert Pajewski;Michelle E. Weber
影响因子:
2.1
作者:
Hans‐Dieter Arndt;A. Vescovi;Anna K. Schrey;J. Pfeifer;U. Koert
通讯作者:
U. Koert
影响因子:
--
作者:
G. Durst;H. Roth
通讯作者:
H. Roth