This allele from IMPC was generated at Medical Research Council Harwell by injecting CAS9 RNA and 4 guide sequences CCAGAAAGCCCTTATGAGTGAAT, GTTCCCCATGTTTCACTAGGTGG, TATACCAGACCATGAACTATGGG, CCAGACCATGAACTATGGGCTAC, which resulted in a Indel. (J:265051)