The RMCE cassette of the TI{CRIMIC.TG4.2}CG4766CR60144-TG4.2 insertion has been replaced with a TI{FFL.2} cassette that is in gene-trap (GT) orientation relative to CG4766. This is expected to truncate the CG4766 protein and to result in the expression of a separate mCherry protein under the control of endogenous CG4766 regulatory sequences.