A TI{CRIMIC.TG4.1} DNA cassette has been inserted into the annotated transcript that encodes the inaF-D small ORF, in a coding intron, and is predicted to gene trap this transcript. The insertion is also within the predicted annotated transcripts of the inaF-A, inaF-B and inaF-C small ORFs, but is not predicted to gene trap any of them. The insertion is also within CG15221, in a coding intron, and is not predicted to gene trap this 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: AGCTGTATTACGATTGCCAAGGG. The PCR check of the insertion gave a longer than expected 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.