This allele from IMPC was generated at Medical Research Council Harwell by injecting CAS9 Protein and 4 guide sequences CCTCTCCTTGTGCATCGTTGTGA, GCTGGCGTTCCTAAAAGGAGAGG, GGGGCCGTCTTCAGCAGAAGTGG, TCGTTGTGATGGATGCTTAGTGG, which resulted in a Exon Deletion. (J:265051)