This allele from IMPC was generated at Medical Research Council Harwell by injecting CAS9 RNA, 4 guide sequences CCATTTGTCAGGGGAAAGGCCTA, GGCCTAATCTAACCTCCTGTGGG, CCCATCCTGATCCCCCCAAGGAC, TATGGGATCAACGTCTTTTGAGG, and a non-contributing oligo, which resulted in a Exon Deletion. (J:237616)