In the past fifteen years, new classes of regulatory RNAs have been discovered, previously hidden in the transcriptome mostly due to their small size. These small regulatory RNAs include small interfering RNAs (siRNAs), microRNAs (miRNAs), and Piwi-interacting RNAs (piRNAs). Numerous databases have been developed to store information about these small regulatory RNAs, and many tools have been developed to work with the data. This overview introduces the reader to the many resources available for working with small regulatory RNAs.
(c) 2009 by John Wiley & Sons, Inc.