This allele from IMPC was generated at Medical Research Council Harwell by injecting CAS9 Protein and 4 guide sequences TGGATACTCCACGCAGGGGAAGG, CCCACGGAAACGCTCTAGGAAGG, GAGATGGATACTCCACGCAGGGG, CCTTCCTAGAGCGTTTCCGTGGG, which resulted in an intergenic deletion. (J:237616)