Homozygous viable. Nonsense and splicing alleles identified by amplicon sequencing. The gk5294 mutation is C->T, flanking sequences CAGAAAAGTACAAATTTGCCTGGATTTTGC and TGAAAATTTTTATCAAAAAACCGGCAAATT. The gk5295 mutation is G->A, flanking sequences GATTAAATCTGATTAGATGAAGCTCAAATC and ATCGAAGTTGTAGAGATACTCCATTGGCAT.