A TI{CRIMIC.TG4.1} DNA cassette has been inserted into CG10576, in a coding intron, and is predicted to gene trap all annotated transcripts of the gene. The TI{CRIMIC.TG4.1} cassette was inserted via the CRISPR/Cas-9 drop-in technique, using a dsDNA donor vector with homology arms of length 200bp. The sgRNA sequence used to target the gene was: TAGGCAGATTAACCAACGCGTGG. The PCR check of the insertion gave no band for the left flank and the expected sized product for the right flank. The insertion site was confirmed by sequencing of the PCR product of the right flank. The following small RNA genes are co-transcribed with CG10576 and their transcription may be affected by the CR71639 insertion: sncRNA:CR43603, snoRNA:Ψ28S-1837a, snoRNA:Ψ28S-1837b, snoRNA:Ψ28S-1837c, snoRNA:CD21, snoRNA:Ψ18S-1397.