This allele from IMPC was generated at Welcome Trust Sanger Institute by injecting CAS9 RNA and 4 guide sequences CCTTAGACGGGCGGCTGAACAGG, CGGCTGAACAGGAGTGGTGGTGG, GCCTGGTCGTGTGATCAGCCTGG, CCTGGTCGTGTGATCAGCCTGGG, which resulted in a Exon Deletion. (J:265051)