Story perspectives

Prophages Boost E. coli Survival, Alter Gut Dynamics

1/5/2026

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Summary

Story summary

Escherichia coli strain NC101 carries the lambdoid prophage NC-SV that encodes svsR, a small RNA that represses lamB and other maltodextrin transport genes, reducing phage adsorption.
In mouse experiments, NC101 showed lower phage loads in gut than a strain lacking the NC-SV prophage, and this led to increased bacterial spread to the liver and spleen.
The study shows how prophages influence bacterial survival and gut dynamics in nutrient availability.

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Story summary

Escherichia coli strain NC101 carries the lambdoid prophage NC-SV that encodes svsR, a small RNA that represses lamB and other maltodextrin transport genes, reducing phage adsorption.
In mouse experiments, NC101 showed lower phage loads in gut than a strain lacking the NC-SV prophage, and this led to increased bacterial spread to the liver and spleen.
The study shows how prophages influence bacterial survival and gut dynamics in nutrient availability.