This allele from IMPC was generated at Helmholtz-Zentrum Muenchen by injecting CAS9 Protein and 4 guide sequences CCTTAACCGAGGCTTCCACCATC, TTGCACGCAGACGCGGTGCGAGG, CCACGGACTCTCGCCGCAGCGAC, TCGGCAGTCTGTCGGCCCGCCGG, which resulted in an intergenic deletion.