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    Plant transducers of the endoplasmic reticulum unfolded protein response

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    Type
    Article
    Authors
    Iwata, Yuji
    Koizumi, Nozomu
    KAUST Department
    Biological and Environmental Sciences and Engineering (BESE) Division
    Date
    2012-12
    Permanent link to this record
    http://hdl.handle.net/10754/566016
    
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    Abstract
    The unfolded protein response (UPR) activates a set of genes to overcome accumulation of unfolded proteins in the endoplasmic reticulum (ER), a condition termed ER stress, and constitutes an essential part of ER protein quality control that ensures efficient maturation of secretory and membrane proteins in eukaryotes. Recent studies on Arabidopsis and rice identified the signaling pathway in which the ER membrane-localized ribonuclease IRE1 (inositol-requiring enzyme 1) catalyzes unconventional cytoplasmic splicing of mRNA, thereby producing the active transcription factor Arabidopsis bZIP60 (basic leucine zipper 60) and its ortholog in rice. Here we review recent findings identifying the molecular components of the plant UPR, including IRE1/bZIP60 and the membrane-bound transcription factors bZIP17 and bZIP28, and implicating its importance in several physiological phenomena such as pathogen response. © 2012 Elsevier Ltd.
    Publisher
    Elsevier BV
    Journal
    Trends in Plant Science
    ISSN
    13601385
    DOI
    10.1016/j.tplants.2012.06.014
    PubMed ID
    22796463
    ae974a485f413a2113503eed53cd6c53
    10.1016/j.tplants.2012.06.014
    Scopus Count
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    Articles; Biological and Environmental Sciences and Engineering (BESE) Division

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