Nucleotide substitution: G?A.
Amino acid replacement: W156term.
G24852292A
G?A
W156term | nct-PA; W156term | nct-PC; W156term | nct-PD; W156term | nct-PE
W156term
TGG to TAG nonsense mutationi in codon W156.
Antennal discs from nctST1/nctST3 late third instar larvae display supernumerary sensory organ precursors. In the eye disc, a lack of photoreceptor neuron formation is observed, and the disc is reduced in size compared to wild-type. Mutant leg discs display supernumerary sensory organ precursors and neurons.
Homozygous nctST3 large mutant eye disc clones (generated in a Minute/+ background) display very few neurons, and an overall reduction in disc size is observed. On the contrary, small nctST3 clones (generated in a wild-type background) display supernumerary neurons, and extra R8 neurons are present.
Nint.U.UAS, NctST3/NctST1, Scer\GAL4dpp.blk1 has increased cell number phenotype
NctST3/NctST1 has eye photoreceptor cell | wandering third instar larval stage phenotype, suppressible by Nint.U.UAS/Scer\GAL4dpp.blk1
NctST3/NctST1 has eye disc | wandering third instar larval stage phenotype, suppressible by Nint.U.UAS/Scer\GAL4dpp.blk1
NctST3/NctST1 is a suppressor of ommatidial precursor cluster | wandering third instar larval stage phenotype of Nint.U.UAS, Scer\GAL4dpp.blk1
Expression of Nint.U.Scer\UAS under the control of Scer\GAL4dpp.blk1 in a nctST1/nctST3 mutant background results in larger third instar eye discs compared to wild-type. The missing neuronal clusters observed in Nint.U.Scer\UAS; Scer\GAL4dpp.blk1 eye discs are restored in a nctST1/nctST3 mutant background. However, R8 cells are not as regularly arrayed as in wild-type or Nint.U.Scer\UAS; Scer\GAL4dpp.blk1 eye discs. An increase R8 cell number is also observed, including more than one R8 cell per cluster.