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More accurate, powerful genetic analysis tool opens new gene-regulation realms
Date:4/22/2013

SALT LAKE CITYResearchers from Huntsman Cancer Institute (HCI) at the University of Utah have developed a novel and powerful technique to identify the targets for a group of enzymes called RNA cytosine methyltransferases (RMTs) in human RNA. They applied their technique to a particular RMT, NSUN2, which has been implicated in mental retardation and cancers in humans, finding and validating many previously unknown RMT targetsan indication of the technique's power. The research results were published online in the journal Nature Biotechnology on April 21.

"Although RMTs have been known for many years, virtually nothing is known about the majority of these enzymes in humans," said Bradley R. Cairns, co-author of the study and Senior Director of Basic Science at HCI. "This new technique will now allow the very rapid identification of the direct target RNAs for each human RMT, and we are excited about conducting that work."

Within all living cells, RNA acts as a critical intermediate in transmitting genetic information from DNARNA is made from DNA and then used to encode proteins called enzymes that control cell functions. A process called cytosine methylation attaches methyl molecules to cytosine bases in DNA and RNA molecules. RMTs act as catalysts to allow methylation at particular locations in RNA molecules. Methylation can regulate the flow of genetic information (from RNA to protein production) in cells, and it can change the way RNA interacts with proteins.

RNA methylation is currently poorly understood, partly because of limitations in the technique currently used to identify which RNA molecules and cytosine bases are RMT targets. As each cell contains thousands of different types of RNA molecules, often with only a small percentage being targets for a specific RMT, the first step in a study of RNA methylation is to sort out and concentrate the precise target RNA molecules for a particular RMT, in a process called enrichment.'/>"/>

Contact: Linda Aagard
801-587-7639
University of Utah Health Sciences
Source:Eurekalert

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