Catabolism of serine enantiomers represses enterohemorrhagic Escherichia coli virulence factors via modulation of the nitrogen stress response

Proceedings of the National Academy of Sciences, Volume 123, Issue 12, March 2026. <br/>SignificanceTo optimize within-host fitness, bacterial pathogens exploit intricate sensory mechanisms to precisely modulate gene expression in response to host-associated cues. D-serine, a host-produced metabolite enriched in urine inhibits the type 3 …