Homozygous viable. Nonsense alleles identified by amplicon sequencing. The gk5217 mutation is C->T, flanking sequences GCTGATGCGGACATCCAACTTAGTTAAAAT and CATTCATTTGTGGCTTGACATAAATTATAT. The gk5218 mutation is C->T, flanking sequences GTGATCAGTTCTATTTTTGGTGCAGAACTT and CAGACGAAAAGTCGAATGGCAAGAACTGCT.

Engineered null mutations in predicted GPCR genes. Reference: Pu L, et al. Nat Commun. 2023 Dec 18;14(1):8410. PMID: 38110404.