This allele was generated at The Jackson Laboratory by electroporating Cas9 protein and 2 guide sequences: CTGCAAGCAGGTAGTAGCTA and GCTAGGATGGCTGCGGTCCA. This resulted in a 1236 bp deletion of Chr2:25,194,651-25,195,886(GRCm38/mm10) that involves exon ENSMUSE00000491432. (J:188991)