A TI{CRIMIC.TG4.2} DNA cassette has been inserted into CG11550, in a coding intron, and is predicted to gene trap all annotated transcripts of the gene. The TI{CRIMIC.TG4.2} 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: AGAGACAAGGGTGTAGTTCAGGG. The PCR check of the insertion gave no band for the right flank and the expected sized product for the left flank. The insertion junction of the left flank was verified by sequencing.