Genomic DNA representing the elav20 mutant open reading frame, with 5.9kb of 5' sequences fused to the αTub84B 3' trailer sequences.
viable
Flies carrying two copies of elav20.tSa are viable.
elav20.tSa fails to rescue elav5
elav20.tSa fails to rescue elavunspecified
Fails to rescue elav5 at 18oC.
Fails to rescue elav null mutants.