The ubiquitous snRNA:U6:96Ac promoter drives expression of a single sgRNA (ACTGACCAACTCCGACGGGG) that targets Uba1.
Crispr-Cas9 mutagenesis of Uba1 by expressing Spyo\Cas9UAS.Tag:NLS(Unk) under the control of Scer\GAL4GMR71G10 and using Uba1gRNA.pCFD3-3 as a guide, results in very frequent mushroom body gamma neuron pruning defects.