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Summary of unf alleles. The unfX1 allele disrupts the 5' donor splice site of intron 2, whereas the unfZ0001 allele has a missense mutation due to a guanine to adenine transition at base 312 of exon 2, resulting in a glycine to arginine substitution (G120R) [25]. The unfMB05909 line contains a GAL4 insertion in intron 1 of the unf gene (FlyBase). DBD, DNA-binding domain.
