This allele from project TCPR0321, was generated at The Centre for Phenogenomics by injecting Cas9 mRNA and two guide RNAs with spacer sequences GGCCAGTTGGAGCTATGCGA and GAGAAGCACGCGTCCTCCTC. This resulted in a 486 bp deletion from Chr8:119771064 to 119771549 encompassing ENSMUSE00000318051 (GRCm38).