This allele from IMPC was generated at Medical Research Council Harwell by injecting CAS9 RNA and 4 guide sequences CCTGGAATTGTCACACTACTCGG, AGCACGCGAGGCTGAGCGACCGG, TGGCATTGGCTGAGCACGCGAGG, ATTGTCACACTACTCGGGAAAGG, which resulted in a Indel. (J:265051)