Hi,
You have an error (don't know if it was yours, soundtrack problems or a slip on the researcher's part):
"Simply by exchanging the guanine bases in the retroviral sequences to alanin APOBEC3 stops the virus from replicating. "
Guanine (G) would be changed to adenine (A), not alanine which is an amino acid (protein component.) I think your readers still get the idea, a G to A transition.
Thanks for your continued reporting - you consistently get the best overviews I have seen.
Gerald R. Campbell, Ph.D.