RNase III enzymes and the initiation of gene silencing.
Our understanding of RNA interference has been enhanced by new data concerning RNase III molecules. The role of Dicer has previously been established in RNAi as the originator of 22-mers characteristic of silencing phenomena. Recently, a related RNAse III enzyme, Drosha, has surfaced as another component of the RNAi pathway. In addition to biochemistry, protein structures have proven to be helpful in deciphering the enzymology of RNase III molecules.
Carmell
Michelle A
MA
Cold Spring Harbor Laboratory, Watson School of Biological Sciences, 1 Bungtown Road, Cold Spring Harbor, New York 11724, USA.
Hannon
Gregory J
GJ
D020868:Gene Silencing; D035683:MicroRNAs / Q000235:genetics / Q000378:metabolism; D008957:Models, Genetic; D034622:RNA Interference; D034741:RNA, Small Interfering / Q000235:genetics / Q000378:metabolism; D043244:Ribonuclease III / Q000378:metabolism / Q000502:physiology*
D035683:MicroRNAs; D034741:RNA, Small Interfering; D043244:Ribonuclease III