Chunk #16 — METHODS — UPR analysis
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The XBP1 luciferase reporter assay was performed as for the NFκB/RE luciferase reporter assay but with the use of an XBP1 luciferase reporter construct and HT1080 cells (ATCC). ER stress-induced splicing of the 26-bp intron of human XBP1 was analyzed.