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钙离子通道阻滞剂ω-芋螺毒素对大肠杆菌趋化性的抑制作用。

Inhibition of Escherichia coli chemotaxis by omega-conotoxin, a calcium ion channel blocker.

作者信息

Tisa L S, Olivera B M, Adler J

机构信息

Department of Biochemistry, University of Wisconsin-Madison 53706-1569.

出版信息

J Bacteriol. 1993 Mar;175(5):1235-8. doi: 10.1128/jb.175.5.1235-1238.1993.

Abstract

Escherichia coli chemotaxis was inhibited by omega-conotoxin, a calcium ion channel blocker. With Tris-EDTA-permeabilized cells, nanomolar levels of omega-conotoxin inhibited chemotaxis without loss of motility. Cells treated with omega-conotoxin swam with a smooth bias, i.e., tumbling was inhibited.

摘要

ω-芋螺毒素(一种钙离子通道阻滞剂)可抑制大肠杆菌的趋化作用。对于经Tris-EDTA通透处理的细胞,纳摩尔浓度的ω-芋螺毒素可抑制趋化作用而不影响其运动能力。用ω-芋螺毒素处理的细胞游动时具有平滑的偏向性,即翻滚受到抑制。

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引用本文的文献

本文引用的文献

4
Chemotaxis in bacteria.细菌的趋化性。
Science. 1966 Aug 12;153(3737):708-16. doi: 10.1126/science.153.3737.708.
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Negative chemotaxis in Escherichia coli.大肠杆菌中的负趋化性。
J Bacteriol. 1974 May;118(2):560-76. doi: 10.1128/jb.118.2.560-576.1974.
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Chemotaxis toward amino acids in Escherichia coli.大肠杆菌对氨基酸的趋化作用。
J Bacteriol. 1972 Oct;112(1):315-26. doi: 10.1128/jb.112.1.315-326.1972.
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Calcium channel blockers inhibit bacterial chemotaxis.钙通道阻滞剂抑制细菌趋化性。
FEBS Lett. 1988 Aug 29;236(2):437-40. doi: 10.1016/0014-5793(88)80072-3.
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Osmotaxis in Escherichia coli.大肠杆菌中的渗透趋性。
Proc Natl Acad Sci U S A. 1988 Dec;85(24):9451-5. doi: 10.1073/pnas.85.24.9451.

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