This allele from IMPC was generated at Medical Research Council Harwell by injecting CAS9 RNA, 4 guide sequences AATGCAAACTAGCATCCTCAGGG, CCCACCTCAGTGCTTCTAGGGTT, CTATTTAGCATACAGTGTTATGG, ATTAATAGTCTAGTGAAAGTAGG, and a donor oligo, which resulted in a Exon Deletion. (J:237616)