Unfolded Protein Response Signaling and Metabolic Diseases
نویسندگان
چکیده
منابع مشابه
Intracellular signaling by the unfolded protein response.
The unfolded protein response (UPR) is an intracellular signaling pathway that is activated by the accumulation of unfolded proteins in the endoplasmic reticulum (ER). UPR activation triggers an extensive transcriptional response, which adjusts the ER protein folding capacity according to need. As such, the UPR constitutes a paradigm of an intracellular control mechanism that adjusts organelle ...
متن کاملHeterotrimeric G protein signaling in the Arabidopsis unfolded protein response.
We present evidence that heterotrimeric G protein signaling is involved in cell death associated with the unfolded protein response (UPR) in Arabidopsis. Seedlings of homozygous agb1-2 (Gbeta-null mutation) mutant plants are markedly more resistant to growth inhibition by the protein glycosylation inhibitor tunicamycin (Tm) than either wild-type plants or gpa1-4 (Galpha-null mutation) mutants. ...
متن کاملEndoplasmic reticulum stress: signaling the unfolded protein response.
The endoplasmic reticulum (ER) is the cellular site of newly synthesized secretory and membrane proteins. Such proteins must be properly folded and posttranslationally modified before exit from the organelle. Proper protein folding and modification requires molecular chaperone proteins as well as an ER environment conducive for these reactions. When ER lumenal conditions are altered or chaperon...
متن کاملIRE1 signaling affects cell fate during the unfolded protein response.
Endoplasmic reticulum (ER) stress activates a set of signaling pathways, collectively termed the unfolded protein response (UPR). The three UPR branches (IRE1, PERK, and ATF6) promote cell survival by reducing misfolded protein levels. UPR signaling also promotes apoptotic cell death if ER stress is not alleviated. How the UPR integrates its cytoprotective and proapoptotic outputs to select bet...
متن کاملThe unfolded protein response
Where does the UPR function? Between the endoplasmic reticulum (ER) and the nucleus of eukaryotic cells. All secreted proteins and proteins that reside in secretory compartments translocate as nascent peptide chains into the ER, where they may undergo folding, modification and assembly before assuming their functional conformations. The ER maintains a specialized oxidizing environment to aid ch...
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ژورنال
عنوان ژورنال: Journal of Biological Chemistry
سال: 2014
ISSN: 0021-9258
DOI: 10.1074/jbc.r113.534743