The ubiquitous snRNA:U6:96Ac promoter drives expression of a single sgRNA (GGGCGAGCTCTACAAGCAGG) that targets Rpn6.
Crispr-Cas9 mutagenesis of Rpn6 by expressing Spyo\Cas9UAS.Tag:NLS(Unk) under the control of Scer\GAL4GMR71G10 and using Rpn6gRNA.pCFD3-3 as a guide, results in very frequent mushroom body gamma neuron pruning defects.