Resumen de Success in incorporating horizontally transferred genes: the H-NS protein

Mario Hüttener, Sònia Paytubi, Antonio Juárez

• The nucleoid-associated protein H-NS silences unwanted expression of acquired foreign DNA. Ali and colleagues recently identified which horizontally-acquired genes are targeted by H-NS in Salmonella to avoid fitness loss. The reported data strengthen our view about the role of H-NS in bacterial evolution driven by horizontal gene transfer.