A TI{CRIMIC.TG4.0} DNA cassette has been inserted into Nha1, in a coding intron, and is predicted to gene trap all annotated transcripts of the gene. The TI{CRIMIC.TG4.0} cassette was inserted using the CRISPR/Cas9 technique together with a donor plasmid to drive homology directed repair. The sgRNA sequence used to target the gene was: ATAGCGATCATTCCGCTTATTGG. The PCR check of the insertion gave no product for either flank.