lsy-6 expression in ASEL is abolished in a
die-1 mutant background. In other neurons,
die-1 has no effect on
lsy-6 expression. In the context of the ASE neurons,
die-1 is not only necessary but also sufficient to control
lsy-6 expression, because ectopic expression of
die-1 in ASER results in ectopic
lsy-6prom::gfp expression.