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. 1981 Apr;146(1):331–336. doi: 10.1128/jb.146.1.331-336.1981

Mechanism of lysis of Escherichia coli by ethanol and other chaotropic agents.

L O Ingram
PMCID: PMC217087  PMID: 7012119

Abstract

Ethanol has been shown to inhibit the assembly of cross-linked peptidoglycan and to induce cell lysis in Escherichia coli. These effects of ethanol appear to result from the weakening of hydrophobic interactions by ethanol rather than from the intercalation of ethanol into membranes. Other chaotropic agents also inhibited cross-linking and induced lysis. The potency of chaotropic anions with regard to this effect followed the expected chaotropic series. Antichaotropic agents, which strengthened hydrophobic interactions, antagonized ethanol-induced lysis. The weakening of hydrophobic interactions by ethanol is proposed as a general mechanism by which ethanol and other chaotropic agents could affect membrane-associated enzyme activities.

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Selected References

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