This allele from IMPC was generated at Medical Research Council Harwell by injecting CAS9 Protein and 4 guide sequences CCAAAGACGAAAGTGCACACCAC, CCCAAAGACGAAAGTGCACACCA, CCCAGCACGCCCATCGCGAAAAT, GCGCCAGCACGGTGATCACCAGG, which resulted in an intergenic deletion. (J:237616)