Several mechanisms have evolved that regulate the biogenesis of specific classes of small RNA using variations on the same core processing machinery. Most animals encode a single Dicer protein ...

In reality, there is much more to the RNA story. However, in the half-century since the structure of DNA ... the evolution of DNA and proteins (Gilbert, 1986). Small interfering RNAs (siRNAs ...

RNA is similar to DNA but contains uracil instead of thymine (T) and has a single-stranded structure. Comparison of a single-stranded ... or degradation, thus fine-tuning protein production in the ...

identified a unique genomic island in pathogenic Salmonella containing five proteins of unknown function and a small noncoding RNA. They discovered that this five-gene island is responsible for ...