This allele was generated at The Jackson Laboratory by electroporating Cas9 protein and 2 guide sequences: ACTCCAAAAGAAGTCTATCA and AACAGACTCTTTCTGACTTA. This resulted in a 1,283 bp deletion of Chr3:9,264,341-9,265,623 (GRCm38/mm10) that removes exon ENSMUSE00000769877. (J:188991)