Elias Taylor-Cornejo

Bioinformatic pipeline to identify candidate mRNA transcripts targeted by the putative Regulated Ire1-Dependent Decay pathway of Dictyostelium discoideum .

Inositol-requiring protein 1 (Ire1) is a eukaryotic stress sensor that counteracts the buildup of unfolded proteins in the endoplasmic reticulum (ER) by activating the Unfolded Protein Response (UPR) via a specific ribonuclease (RNase) activity. The amoeba Dictyostelium discoideum relies on an ire1 ortholog, ireA , to survive ER stress, but the mRNA transcripts targeted by the IreA ribonuclease remain unknown. In this work, we developed a bioinformatic pipeline that identified 21 mRNA transcripts of D. discoideum that contain a consensus Ire1 cut site found within a secondary mRNA hairpin loop structure and have the potential to be cut by IreA.