Vertebrate Unfolded Protein Response: Mammalian Signaling Pathways Are Conserved in Medaka Fish

Abstract excerpt

The accumulation of unfolded proteins in the endoplasmic reticulum (ER) activates the unfolded protein response (UPR). The ER stress signal is sensed and transmitted by a transmembrane protein(s) in the ER. The number of these transducers has increased with evolution, one in yeast, three in worm and fly, and five in mammals. Here, we examined medaka fish, Oryzias latipes, as a vertebrate model organism, and found...

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