Phage receptor material in Lactobacillus casei
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Updated: Oct 9, 2026

Following Cell-fate in E. coli After Infection by Phage Lambda
Published on: October 14, 2011
Abstract:
In Lactobacillus casei S-I, D-galactosamine and L-rhamnose comprised a phage receptor for phage J-I. A mixture of D-galactosamine and L-rhamnose effectively inactivated phage J-I, and a J-I-resistant mutant strain, L. casei S-I/J-I, lacked D-galactosamine in its surface component. The phage-inactivating effects of D-galactosamine and L-rhamnose were strongly dependent on the concentration of each substance and on temperature. It is suggested that the receptor for phage J-I involves both D-galactosamine in the cytoplasmic membrane and L-rhamnose in the wall of the host bacterium L. casei S-I, which lacts teichoic acid in its wall.
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