The snRNA:U6:96Ac promoter drives expression of four different sgRNAs which target fuss DNA sequence including the Ski/Sno homology domain; also contains flanking tRNA.
Bitter sensing is impaired in adults
lacking fuss following Spyo\Cas9UAS.P2-mediated mutagenesis in Scer\GAL4Poxn.13-expressing neurons using fussU6:96Ac.4xgRNA.tRNA as a guide.