This allele from project TCPR1481 was generated at The Centre for Phenogenomics by electroporating Cas9 ribonucleoprotein complexes with single guide RNAs having spacer sequences of GTTAACAGGTATCAGCGTCA targeting the 5' side and GACGTCCTTTACGCCAGTGT targeting the 3' side of a critical region. This resulted in a 1193-bp deletion Chr14: 8137054-8138246, p.(G156Afs*13) (GRCm38).