Howard Hughes Medical Institute (HHMI) scientists have created a portrait of a DNA-snipping protein called Cas9 that reveals how the enzyme reshapes itself when it associates with an RNA molecule, creating a channel that lets it find and cleave its DNA target. The protein-RNA complex is a key component of a primitive bacterial immune system called CRISPR, and is also being used by researchers to cut specific DNA sequences in the laboratory for genome editing applications.
Here is a small tribute of electronic media to our little green friends. First, we have some sound samples packs. The first is of a plethora of frogs going through random rhythms. This was sampled in the late summer of 2005. The second sample pack is processed one hits from the first pack.