2.7kb genomic fragment that encompasses sqh. The coding sequence has been mutated to carry a T20A amino acid substitution (mutation of the second phosphorylation site to a non-phosphorylatable residue).
abnormal axis specification | germline clone | oogenesis, with sqhAX3
abnormal cell polarity | germline clone | oogenesis, with sqhAX3
oocyte | germline clone, with sqhAX3
sqhAX3 heterozygotes bearing two copies of sqhT20A produce oocytes with polarity defects (i.e. mislocalized Staufen protein).
sqhT20A fails to rescue sqhAX3