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. 1985 Nov;164(2):712–716. doi: 10.1128/jb.164.2.712-716.1985

Export of alpha-amylase by Bacillus amyloliquefaciens requires proton motive force.

E M Murén, L L Randall
PMCID: PMC214310  PMID: 2997128

Abstract

The secretion of protein directly into the extracellular medium by Bacillus amyloliquefaciens, a gram-positive bacterium, was shown to be dependent on proton motive force. When the electrochemical membrane potential gradient of protons was dissipated either by uncouplers or by valinomycin in combination with K+, a precursor form of alpha-amylase accumulated on the cellular membrane. The proton motive force could be dissipated without altering the intracellular level of ATP, indicating that the observed inhibition of export was not the result of decreased ATP concentration.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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