FIG. 9.

Sequence variation within the BART miRNAs (mir-BART) and analysis of miRNA expression. The sequence of the BART pre-miRNAs is shown with the mature miRNA indicated in italics. Sequence changes are denoted in boldface with the corresponding cell line indicated. Expression of the miRNA in cell lines with and without sequence changes was determined by Northern blotting and is shown in the top band. Hybridization to the small nuclear U6 RNA is included as a loading control and is shown in the lower band. Asterisks denote cell lines with sequence changes.