This allele from IMPC was generated at Medical Research Council Harwell by injecting CAS9 Protein and 4 guide sequences AGGTTTAAGTAGTCCCTAACTGG, CCCTAACTGGTGGTCCTCTGCAG, CCCAGCAATGGACGTGAAACCAT, CCAGCAATGGACGTGAAACCATG, which resulted in a Exon Deletion. (J:265051)