UASt regulatory sequences drive expression of a chimeric Hsap\TARDBP protein that consists of the N-terminal 100 amino acids (this contains the nuclear localization sequence), the linker region that is normally found between the two RNA recognition motifs (RRMs), a mutated form of RRM2 that cannot bind RNA but retains the nuclear export sequence, and 12 tandem copies of its prion-like Q/N-rich region. The protein is tagged at the N-terminal end with Tag:FLAG.
Flies expressing Hsap\TARDBPAggIn.Scer\UAS.T:Zzzz\FLAG have significantly shorter adult lifespan and along with age-progressive climbing defects (with the Scer\GAL4elav.PU driver) but do not display any obvious eye morphological defects (with the Scer\GAL4GMR.PU driver), not even during aging, although they show slightly impaired phototaxis relative to controls.
Depending on the particular insertion Hsap\TARDBPAggIn.Scer\UAS.T:Zzzz\FLAG-expressing (under Scer\GAL4elav.PU) flies display less or more severe increase in larval or pupal lethality and with a strong insertion line (5A), the larvae (3rd instar) also show reduced motility (number of peristaltic waves per unit of time) compared to controls.