Abstract
Adsorption of bacteriophage sk1 to Lactococcus lactis ssp. lactis C2 was reduced 64, 26, 26, 5, and 8% by addition of rhamnose, glucose, galactose, N-acetylglucosamine, and fucose, respectively, to the adsorption assay. Lectins that were specific for N-acetylglucoseamine and galactose did not prevent phage adsorption. However, three lectins specific for glucose, but different in size, reduced phage adsorption from 0 to 50%. Another lectin, which was specific for rhamnose, reduced phage adsorption 80%. Rhamnose, but not glucose, partially inhibited phage infection when added to a growing culture. The data suggest that a glucose moiety is near the adsorption site or is an important conformational determinant of it.
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