Bartel Lab

Researchers at Whitehead Institute have uncovered how small changes in the fish Argonaute (Ago) protein, an RNA slicing protein, that happened in its lineage an estimated 300 million years ago greatly diminished the efficiency of RNAi in these animals, while another ancestral feature, in a critical pre-microRNA, was retained that enabled the microRNA to still be produced despite the fish’s impaired Ago protein.

Deep in your DNA, a gene has gone haywire and is driving up the production of a protein that is messing with your body. Wouldn’t it be great to sift through all your 20,000-something genes, find the offender, and swat it like a fly? Fortunately, a new technique eventually could do just that.