How bacteria can sense temperature
The Yersinia RovA belongs to a family of DNA-binding proteins that controls a wide range of physiological processes implicated in environmental adaptation, survival, and pathogenesis in humans, animals and plants.
A study published in PloS Pathogens reports that, in pathogenic Yersinia, RovA can undergone thermo-induced structural alterations that reduce its DNA-binding capacity. These alterations in the same time render RovA susceptible to degradation by proteases. RovA acts as a thermosensor that modulates virulence gene expression within the bacteria.
More information in:
Herbst K, Bujara M, Heroven AK, Opitz W, Weichert M, et al. (2009) Intrinsic Thermal Sensing Controls Proteolysis of Yersinia Virulence Regulator RovA. PLoS Pathog 5(5): e1000435. doi:10.1371/journal.ppat.1000435