Download or read book Regulation of Gene Expression by Small RNAs written by Rajesh K. Gaur and published by CRC Press. This book was released on 2009-04-27 with total page 440 pages. Available in PDF, EPUB and Kindle. Book excerpt: New Findings Revolutionize Concepts of Gene FunctionEndogenous small RNAs have been found in various organisms, including humans, mice, flies, worms, fungi, and bacteria. Furthermore, it's been shown that microRNAs acting as cellular rheostats have the ability to modulate gene expression. In higher eukaryotes, microRNAs may regulate as much as 50 p