This allele from IMPC was generated at Korea Mouse Phenotype Consortium by injecting CAS9 Protein and 4 guide sequences CCCTTTGGGCTAAGTGTGTAAAC, CCCTTGAGGGGTCCTGGTAAGTC, GAGGGGTCCTGGTAAGTCATAGG, CCCGATCTCATATCTCTGATGGG, which resulted in a Exon Deletion.