This allele was generated at The Jackson Laboratory by electroporating Cas9 protein and 2 guide sequences:GCATTGCGTTATGGAAAGAA and CCTTCCTCAGAAACGTTCCA. This resulted in a 2,197 bp internal deletion of Chr16:58,729,335-58,731,531(GRCm38/mm10) and removes exons ENSMUSE00001232279 and ENSMUSE00001232574.