This allele was generated at The Jackson Laboratory by electroporating Cas9 protein and 2 guide sequences: GGAGAGCCCAGCTTCTATAG and CCGTTTCAAATTCACCTGTG. This resulted in a 1,203 bp deletion of Chr14:63,047,434-63,048,636 (GRCm38/mm10) that removes exons ENSMUSE00001280806 and/through ENSMUSE00000446611.