This allele from IMPC was generated at Medical Research Council Harwell by injecting CAS9 RNA and 4 guide sequences CACAACACCAGGCAAGGCCGTGG, CCGTGGTGGTGGAGTTAATCTTG, CCCTGCGGTGGTCATGAATCGGT, CCTGCGGTGGTCATGAATCGGTT, which resulted in a Inter-exdel deletion. (J:265051)