. "B2 is expressed by the insect Flock House virus (FHV) as acounter-defense mechanism against antiviral RNA silencing during infection. In vitro, B2 binds to dsRNA as a dimer and inhibits the cleavage of it by Dicer. B2 blocks cleavage of the FHV genome by Dicer and also the incorporation of FHV small interfering RNAs into the RNA-induced silencing complex [1]. " . "B2" . "RNA binding protein B2" . "Pollington J" . "Family" . . . .