Amino acid replacement: W369term.
G11867575A
W369term | Nrd1-PA
W369term
G to A nucleotide change at the second or third position of the Trp codon leads to a nonsense mutation (exact site of mutation unspecified). Site of nucleotide substitution in mutant inferred by FlyBase based on reported amino acid change.
A neurodegenerative disorder has been ascribed to a loss of function mutation of Nrd1 in a patient. Mutations in two known disease-related genes have also been identified in this patient but those have either been reported as benign or their known clinical symptoms do not match the phenotype of the patient.
Adult flies with Nrd1W369X mutant retinal somatic clones show age-progressive loss of synaptic transmission in photoreceptor cells characterized by loss of on- and off-transients in electroretinogram readings compared to wild-type controls.
Nrd1Q376X/Nrd1W369X has lethal - all die during pupal stage phenotype, suppressible by Hsap\NRDCUAS.Tag:V5/Scer\GAL4da.G32
Nrd1W369X/Nrd1R540X has lethal - all die during pupal stage phenotype, suppressible by Hsap\NRDCUAS.Tag:V5/Scer\GAL4da.G32
Nrd1W369X/Nrd1K134X has lethal - all die during pupal stage phenotype, suppressible by Hsap\NRDCUAS.Tag:V5/Scer\GAL4da.G32
Nrd1W369X has lethal - all die during pupal stage | recessive phenotype, suppressible by Hsap\NRDCUAS.Tag:V5/Scer\GAL4da.G32
Nrd1Q376X/Nrd1W369X has lethal - all die during pupal stage phenotype, non-suppressible by Scer\GAL4da.G32/Hsap\NRDCM636Vstop.UAS.Tag:V5
Nrd1W369X/Nrd1R540X has lethal - all die during pupal stage phenotype, non-suppressible by Scer\GAL4da.G32/Hsap\NRDCM636Vstop.UAS.Tag:V5
Nrd1W369X/Nrd1K134X has lethal - all die during pupal stage phenotype, non-suppressible by Scer\GAL4da.G32/Hsap\NRDCM636Vstop.UAS.Tag:V5
Nrd1W369X has lethal - all die during pupal stage | recessive phenotype, non-suppressible by Scer\GAL4da.G32/Hsap\NRDCM636Vstop.UAS.Tag:V5
The pupal lethality of the Nrd1W369X mutants can be rescued by expression of Hsap\NRDCScer\UAS.T:SV5\V5 but not Hsap\NRDCM636Vstop.Scer\UAS.T:SV5\V5 under the control of Scer\GAL4da.G32 in the mutant background.
Nrd1W369X is not rescued by Nrd1UAS.mCherry/Scer\GAL4da.G32
The pupal lethality of the Nrd1W369X mutants can be rescued by combination with any of the following :Nrd1+t5, Nrd1+tCH322-77E05 or Dp(1;3)DC245 or by expression of Nrd1Scer\UAS.T:SV5\V5 (but not Nrd1Scer\UAS.T:Disc\RFP-mCherry) under the control of Scer\GAL4da.G32 in the mutant background.
Rescued by: Dp(1;3)DC245.