Of hha sigma-28 , pagD , hha encodes a noted global repressor of virulence genes .
Of hha sigma-28 , hype , hha encodes a noted global repressor of virulence genes .
Of hha sigma-28 , bigA , hha encodes a noted global repressor of virulence genes .
Of hha sigma-28 , ychP , hha encodes a noted global repressor of virulence genes .