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