This allele from IMPC was generated at Medical Research Council Harwell by injecting CAS9 RNA and 4 guide sequences CCTCGGGAGCTCGCGTACTGCGC, CACTCGGTTCCTCAGCAGCCAGG, AGCCTCGGTGCCCAGATCGGCGG, GTACAGACCCCAGCCTTTGTAGG, which resulted in an intergenic deletion. (J:237616)