LGALS4 and keratoconus: Consistent with endogenous Drep-2 being present at KC-derived PSDs, overexpression of UAS-Drep-2mStrawberry with either pan-neural (elavc155-Gal4) or KC-specific drivers (c305a-Gal4) resulted in an mStrawberry signal equivalent to that of the Drep-2C-Term antibody (Figure 4—figure supplement 1B,C).