This allele from project TCPR1201 was generated at The Centre for Phenogenomics by electroporating Cas9 ribonucleoprotein complexes with single guide RNAs having spacer sequences of GATTTCTAATATGGCAGGTT targeting the 5' side and CTGGGAACTTGATGATTACC targeting the 3' side of a critical exon. This resulted in a 10-bp del Chr16:36308067 to 36308076 (GRCm38).