Flies expressing ClkS859A.T:SV5\V5 in a Clkout mutant background exhibit locomotor activity rhythm defects. A small, but significant, reduction in the free-running period is seen compared to controls.
ClkS859A.Tag:V5/Clkout is an enhancer of abnormal locomotor rhythm phenotype of nmoP1/Df(3L)Exel6279
Expression of ClkS859A.T:SV5\V5 (in a Clkout mutant background) enhances the locomotor activity rhythm defects seen in nmoP1/Df(3L)Exel6279 mutants.