GFP reporter inserted into C-terminus of endogenous lin-28 locus. Superficially wild-type. Reference: Ilbay O, et al. C. elegans LIN-28 controls temporal cell-fate progression by regulating LIN-46 expression via the 5Â’UTR of lin-46 mRNA. bioRxiv 697490; doi: https://doi.org/10.1101/697490.