This allele produced from project TCPR0254 at TCP by injecting Cas9 mRNA and one guide RNA with the spacer sequence GGCAACAGTGTGTCCCGCTC. This resulted in a 74-bp deletion from Chr2:53054510 to 53054583, in exon ENSMUSE00000692591. This mutation is predicted to cause a frameshift with amino acid changes after residue 167 and early truncation 9 amino acids later (p.P167Lfs*9). (GRCm38).