This allele from project TCPR0379 was generated at The Centre for Phenogenomics by injecting Cas9 mRNA and two guide RNAs with spacer sequences ATGCTACGTGTTATGTTGGG and AGTCCTGTCCTGCATGCAGG. This resulted in a 915 bp deletion from Chr1:30944289 to 30945203 encompassing OTTMUSE00000245667 & OTTMUSE00000245014 (GRCm38).