Other RNA species that were detected in the exosomal RNA libraries. (A) Pie chart of RNA species and their distributions in the plasma-derived exosomes. Misc RNAs are the RNA sequences that mapped to the human genome but not in any of the categories listed. The DNA category represents the novel transcripts that have no annotation in the human RNA database. (B) Graphic and statistics of a representative novel miRNA predicted by miRDeep2. Both star and mature strands were detected and integrated. Lower left table shows information about the sample and the miRDeep2 scores, along with the read count for each component of the putative miRNA. mm, number of mismatches. Mismatched nucleotides are indicated by uppercase letters.