Article
Interaction of omega-conotoxin and the membrane calcium transport system of Escherichia coli.
FEMS microbiology letters - 1 Jul 2000
Tisa L S
Abstract excerpt
omega-Conotoxin, a calcium channel blocker, inhibits chemotaxis by Escherichia coli. To test whether omega-conotoxin acts at the cytoplasmic membrane, the kinetics of 125I-omega-conotoxin binding was investigated. 125I-omega-Conotoxin bound to Tris-EDTA-permeabilized cells or right-side-out membrane vesicles with saturation kinetics. Binding of 125I-omega-conotoxin to membrane vesicles was inhibited by Ca(2+)...
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