This allele from IMPC was generated at Welcome Sanger Institute by injecting CAS9 RNA and 4 guide sequences CCACAGTGCCCTTCCCACGGGGT, CCTCCCCTCTGGATGAGAATAGA, AGTAGAAGAGGCTCCTCCTCTGG, AAAGTAGGAGCGCCCCCTGCTGG, which resulted in a Exon Deletion. (J:265051)