Could yeast and humans be any more different? Going by looks alone, probably not. But peering into our genomes reveals surprising similarities. That's because we share a common ancestor called LECA ...

Scientists have gotten their first detailed look at the molecular structure of an enzyme that Nature has been using for eons to help silence unwanted genetic messages. A team of researchers with ...

Cells use RNA as a versatile tool to regulate the activity of their genes. Small snippets of RNA can fine-tune how much protein is produced from various genes; some small RNAs can shut genes off ...

Cooking at home is great, but having enough time to do all of the necessary chopping and dicing of your ingredients can be a challenge. And, who can forget those tears that often come from direct ...

The first crystal structure of Dicer, an enzyme that initiates RNA interference (RNAi), suggests how it works. RNAi is a process in which short RNA molecules recognize messenger RNAs and mark them for ...

RNase III proteins have central roles in RNA silencing by processing double-stranded (ds)RNA precursors into small RNA duplexes 1. Drosha cleaves a primary precursor of miRNA (pri-miRNA) to release a ...