Heterozygotes are WT and segregate WT, Uncs, Ste/Mel, and dead eggs. The epc-1(n4076) deletion removes 886 nucleotides from the epc-1 locus (Y111B2A.11). Relative to the first nucleotide of the predicted initiator ATG, the deletion begins at about nt. 2014 and ends at about nt. 2899 to give the junction sequence CTTCTCTGT/CCGGCTTTA.