Deletion of amino acids 229 to 399, en-derived region 4 (removes the R domain plus additional sequences).
lethal - all die during embryonic stage | recessive
some die during embryonic stage | recessive
ventral denticle belt
After a 15 minute heat shock more than 70% embryos fail to hatch. Preferential deletion of ftz-dependent bands in about 60% of cuticles.