This allele from IMPC was generated at Medical Research Council Harwell by injecting CAS9 Protein and 4 guide sequences CAACCGAAGGAGGGCTCCCAGGG, GGGGCCGCACCAGTGAGCTCCGG, GAGCGTTGCATTTTCTGCCTCGG, CCTGTGGCTGTCCCCGGGAGCTA, which resulted in a Indel. (J:265051)