Function
Member of a two-component regulatory system HprR/HprS involved in response to hydrogen peroxide (PubMed:25568260, PubMed:27983483). Regulates the expression of at least 5 operons, cyoABCDE, hprRS, hiuH, cusRS and cusCFBA. Bifunctional regulator that acts as an activator and a repressor (PubMed:25568260).