Nucleotide substitution: G?A.
Premature stop codon in exon 9.
G29137264A
W735term | Vha100-1-PA; W738term | Vha100-1-PB; W757term | Vha100-1-PC; W738term | Vha100-1-PD; W757term | Vha100-1-PE; W735term | Vha100-1-PF; W752term | Vha100-1-PG; W754term | Vha100-1-PI; W754term | Vha100-1-PJ; W738term | Vha100-1-PK
W?term
TGG to TGA nonsense mutation in Trp codon. Position of amino acid mutation inferred from surrounding sequence.
Flies in which the retina is homozygous for Vha100-15 (made using the 'ey-flp' system described in FBrf0125463) consistently fail to walk toward light in a phototaxis assay. Electro-retinograms from these animals display normal depolarization in response to light stimuli, but exhibit a complete loss of 'on' and 'off' transients, indicative of a failure to evoke a postsynaptic response.