Construct: Amino acid replacement: L?A. The LRALL motif is mutated to LRAAA.
embryonic segment | conditional ts Expression of ftzLRAAA.YPWM.hs, following a heat shock 2 hours after egg laying, causes a partial segmentation phenotype in ~25% of embryos. These mutants are missing the denticles of some segments, but do not show a complete pair-rule phenotype.