Secondary structures of csRNAs from S. gordonii challis substr. CH1, S. mutans UA159, S. pyogenes MGAS315, S. suis 05ZYH33, and S. uberis 0140J.. The csRNA gene predictions from Table 2 were folded using the Mfold program . Sequences complementary to Shine-Dalgarno  sequences or translation initiation codons are underlined and shown in red. A conserved stretch of nucleotides found in virtually all csRNAs is underlined and shown in blue.