Abstract
The mode of action of a bactericidal protein (sarcotoxin I) purified from the haemolymph of Sarcophaga peregrina (flesh-fly) larvae was studied, focusing attention on its effect on the function of the membrane of Escherichia coli. Sarcotoxin I almost completely blocked the uptakes of tetraphenylphosphonium ion and proline, which are known to be driven by a membrane potential, indicating that this protein disrupts the membrane potential of bacteria.
MeSH Terms
Animals
Cell Membrane/drug effects
Diptera/analysis
Escherichia coli/drug effects,metabolism,ultrastructure
Hemolymph/analysis
Insect Hormones/blood,pharmacology
Insect Proteins
Larva/analysis
Microscopy, Electron, Scanning
Onium Compounds/metabolism
Organophosphorus Compounds/metabolism
Proline/metabolism
Sodium Dodecyl Sulfate/pharmacology
Chemicals
Insect Hormones
Insect Proteins
Onium Compounds
Organophosphorus Compounds
Sodium Dodecyl Sulfate
sarcotoxin I protein, Sarcophaga peregrina
Proline
tetraphenylphosphonium
Authors & Affiliations
2 authors, click to expand affiliations / ORCID
Okada M
Natori S
References (15)
15 references, click to expand
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