Imprecise excision of a P-element has deleted 630 bp, including the exon 2 acceptor splice site, the ATG, and the sequence coding for the first 32 amino acids of the Shf protein, including the signal peptide.
In shfx33 mutant adult wings the spacing between the third and fourth longitudinal vein is greatly reduced.
The wings of shfx33 hemizygous adults have a reduced distance between L3 and L4 and sometimes have partial deletions of L3. Their eyes and scutellum are also reduced. The scutellum usually lacks bristles.
Drer\wif1UAS.cAa, Scer\GAL4nub-AC-62, shfx33 has lethal | pupal stage phenotype
shfx33 has wing phenotype, suppressible by shf::Drer\wif1EDF-WIF.UAS.Tag:V5
shfx33 has wing vein L3 phenotype, suppressible by shf::Drer\wif1EDF-WIF.UAS.Tag:V5
shfx33 has wing vein L4 phenotype, suppressible by shf::Drer\wif1EDF-WIF.UAS.Tag:V5
shfx33 has wing phenotype, suppressible | partially by shf::Drer\wif1WIF-EDF.UAS.Tag:V5
shfx33 has wing vein L3 phenotype, suppressible | partially by shf::Drer\wif1WIF-EDF.UAS.Tag:V5
shfx33 has wing vein L4 phenotype, suppressible | partially by shf::Drer\wif1WIF-EDF.UAS.Tag:V5
Expression of shf::Drer\wif1EDF-WIF.Scer\UAS.T:SV5\V5 under the control of Scer\GAL4en-e16E strongly suppresses the wing vein phenotype seen in shfx33/Y mutants.
Expression of shf::Drer\wif1WIF-EDF.Scer\UAS.T:SV5\V5 under the control of Scer\GAL4en-e16E weakly suppresses the wing vein phenotype seen in shfx33/Y mutants.
Expression of Drer\wif1Scer\UAS.cAa under the control of Scer\GAL4nub-AC-62 in a shfx33 mutant background is lethal at the pupal stage.
shfx33 is rescued by Scer\GAL4en-e16E/shfUAS.cGb
shfx33 is rescued by shfUAS.cGb/Scer\GAL4dpp.blk1
shfx33 is rescued by Scer\GAL4ptc-559.1/shfUAS.cGb
shfx33 is rescued by shfUAS.cGb/Scer\GAL4ap-md544
shfx33 is partially rescued by Scer\GAL4en-e16E/shfδEGF.UAS
Expression of shfδEGF.Scer\UAS under the control of Scer\GAL4en-e16E weakly rescues the wing vein phenotypes seen in shfx33/Y mutants.