The rnc gene promotes exopolysaccharide synthesis and represses the vicRKX gene expressions via microRNA-size small RNAs in Streptococcus mutans oleh Meng-Ying eMao, Ying-Ming eYang, Ke-Zeng eLi, Lei eLei, Meng eLi, Yan eYang, Xiang eTao, Jia-Xin eYin, Ru eZhang, Xin-Rong eMa, Tao eHu