What's unique? The unfolded protein response in plants

This review highlights the uniqueness of plants in the highly conserved unfolded protein response mechanism in eukaryotic cells. The investigation of a phenomenon called the unfolded protein response (UPR) started approximately three decades ago, and we now know that the UPR is involved in a number of cellular events among metazoans, higher plants, and algae. The relevance of the UPR in human diseases featuring protein folding defects, such as Alzheimer's and Huntington's diseases, has drawn much attention to the response in medical research to date. While metazoans and plants share similar molecular mechanisms of the UPR, recent studies shed light on the uniqueness of the plant UPR, with plant-specific protein families appearing to play pivotal roles. Given the considerable emphasis on the original discoveries of key factors in metazoans, this review highlights the uniqueness of the plant UPR based on current knowledge.

Automated summary

This review discusses the uniqueness of plants in the conserved unfolded protein response mechanism. While plants and animals share similarities in the molecular mechanisms of UPR, recent studies have revealed the distinctiveness of plant UPR, with plant-specific protein families playing crucial roles.