RNA-Seq of Streptococcus mutans
High-quality, clean data were obtained from raw sequences after data filtration. rRNAs and tRNAs were removed by mapping to Rfam (http://rfam.sanger.ac.uk). The intergenic regions of the S. mutans UA159 reference genome (http://www.ncbi.nlm.nih.gov/nuccore/AE014133) were used to map sRNAs with high sequence similarity (mismatchĄÜ1) via the Burrows-Wheeler Alignment tool (BWA) (http://bio-bwa.sourceforge.net/).