pry-1(
mu38) causes ectopic expression of endogenous MAB-5 protein in the QR neuroblast, as determined by anti-MAB-5 antibody staining (Figure 1, Table 1).
bar-1(
mu349) results in a complete loss of
mab-5 expression in the QL neuroblast, as determined by anti-MAB-5 antibody staining (Table 1).
pry-1(
mu38);
bar-1(
mu349) double mutants are indistinguishable from
bar-1(
mu349) mutants suggesting that
bar-1(
mu349) is epistatic to
pry-1(
mu38).