This allele was generated at The Jackson Laboratory by electroporating Cas9 protein and 2 guide sequences: GAACAGGCCCCTGGGGTTCA and TGGCATATCAATGTTTAACT. This resulted in a 1,036 bp deletion of Chr1:119,526,512-119,527,547 (GRCm38/mm10) that removes exon ENSMUSE00001316241. (J:188991)