The RMCE cassette of the Mi{MIC}effMI05507 insertion has been replaced with a FlipFlop cassette in protein-trap (PT) orientation relative to eff. This results in the eff protein being tagged with EGFP.
effMI05507-FF.PT-EGFP/effmer4 flies are viable in the effmer4 lethality complementation test.
Carries a second site lethal mutation on the chromosome.