This allele from IMPC was generated at Medical Research Council Harwell by injecting CAS9 RNA and 4 guide sequences CCTGCTGCCCAAGGGCTAGCCAG, AGCATGGGTTTTCCTGATCGGGG, CCTGATCGGGGTGATCCTTCATC, AAGCTTGTCCTGCTGCCCAAGGG, which resulted in a Exon Deletion. (J:265051)