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PMID: 2436228 Published · ppublish English Journal Article Research Support, U.S. Gov't, Non-P.H.S. Research Support, U.S. Gov't, P.H.S.

Pressure-sensitive ion channel in Escherichia coli.

Proceedings of the National Academy of Sciences of the United States of America ·Vol. 84 ·No. 8 ·1987-04-00 ·Pages 2297-301

Martinac B, Buechner M, Delcour AH, Adler J, Kung C

Abstract

We have used the patch-clamp electrical recording technique on giant spheroplasts of Escherichia coli and have discovered pressure-activated ion channels. The channels have the following properties: activation by slight positive or negative pressure; voltage dependence; large conductance; selectivity for anions over cations; dependence of activity on the species of permeant ions. We believe that these channels may be involved in bacterial osmoregulation and osmotaxis.

MeSH Terms
Electric Conductivity Escherichia coli/physiology Ion Channels/physiology Kinetics Membrane Potentials Pressure Spheroplasts/physiology
Chemicals
Ion Channels
Authors & Affiliations
5 authors, click to expand affiliations / ORCID
Martinac B
Buechner M
Delcour A H
Adler J
Kung C
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23 references, click to expand
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Article Info
Journal
Proceedings of the National Academy of Sciences of the United States of America
Abbr.
Proc Natl Acad Sci U S A
ISSN
0027-8424
DOI
10.1073/pnas.84.8.2297
Published
1987-04-00
Pages
2297-301
Language
English
Region
United States
NLM ID
7505876
PMCID
PMC304637
Subset
IM
Grants
NIAID NIH HHS · AI08746 · United States
NIGMS NIH HHS · GM22714 · United States
NIGMS NIH HHS · GM36386 · United States
External Links
PubMed source DOI: 10.1073/pnas.84.8.2297 PMC Full Text View journal details
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