Discovering them earned their discoverers a Nobel Prize in the 1990s—microRNAs are small RNA molecules that do not code for proteins, however, they take care of an essential function: they act as regulators in gene expression, and so they have become a focus of attention for medical science. Despite there being thousands of different sequences of this genetic material, the individual role that each one plays in several illnesses continues to be unknown for the most part.
Click here for original story, Function of new microRNAs identified in Salmonella and Shigella infections
Source: Phys.org