ArticleMolecular biology of the cell2010
BiP availability distinguishes states of homeostasis and stress in the endoplasmic reticulum of living cells.
Article in Molecular biology of the cell, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 47 papers.
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Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
47 citing papers in PubMed, 84 citations in OpenAlex.
- Article
- Immunoglobulin binding protein (BiP) forms two types of dimers.Protein science : a publication of the Protein Society · 2026Article
- TUSC3 serves as a rate-limiting gatekeeper of a glycan-mediated ER triage checkpoint for BMP4/Dpp.Cell reports · 2026Article
- Coordinated expression and assembly of BiP, p58Proceedings of the National Academy of Sciences of the United States of America · 2026Article
- Proteostasis network response to environmental chronic stress: linking survival to protein aggregation in a human neuroblastoma cellular model.Cellular and molecular life sciences : CMLS · 2025Article
- TUSC3 serves as a rate-limiting gatekeeper of a glycan-mediated ER Triage Checkpoint for BMP4/Dpp.bioRxiv : the preprint server for biology · 2025Article
- Article
- Review
- TUDCA modulates drug bioavailability to regulate resistance to acute ER stress inMolecular biology of the cell · 2025Article
- BiP/GRP78 is a pro-viral factor for diverse dsDNA viruses that promotes the survival and proliferation of cells upon KSHV infection.PLoS pathogens · 2024Article
- HIV-protease inhibitors potentiate the activity of carfilzomib in triple-negative breast cancer.British journal of cancer · 2024Article
- The Essential Functions of Molecular Chaperones and Folding Enzymes in Maintaining Endoplasmic Reticulum Homeostasis.Journal of molecular biology · 2024Review
- Article
- ER chaperone GRP78/BiP translocates to the nucleus under stress and acts as a transcriptional regulator.Proceedings of the National Academy of Sciences of the United States of America · 2023Article
- Indirect Methods To Measure Unfolded Proteins In Living Cells Using Fluorescent Proteins.Methods in molecular biology (Clifton, N.J.) · 2022Article
- BOK controls ER proteostasis and physiological ER stress responses in neurons.Frontiers in cell and developmental biology · 2022Article
- Comparative analysis of the coordinated motion of Hsp70s from different organelles observed by single-molecule three-color FRET.Proceedings of the National Academy of Sciences of the United States of America · 2021Article
- A virtuous cycle operated by ERp44 and ERGIC-53 guarantees proteostasis in the early secretory compartment.iScience · 2021Article
- Article
- Cargo crowding contributes to sorting stringency in COPII vesicles.The Journal of cell biology · 2020Article
Corrections and comments
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Authors and funding
3 authors at 1 institution in 1 country.
Funding
Abstract
Accumulation of misfolded secretory proteins causes cellular stress and induces the endoplasmic reticulum (ER) stress pathway, the unfolded protein response (UPR). Although the UPR has been extensively studied, little is known about the molecular changes that distinguish the homeostatic and stressed ER. The increase in levels of misfolded proteins and formation of complexes with chaperones during ER stress are predicted to further crowd the already crowded ER lumen. Surprisingly, using live cell fluorescence microscopy and an inert ER reporter, we find the crowdedness of stressed ER, treated acutely with tunicamycin or DTT, either is comparable to homeostasis or significantly decreases in multiple cell types. In contrast, photobleaching experiments revealed a GFP-tagged variant of the ER chaperone BiP rapidly undergoes a reversible quantitative decrease in diffusion as misfolded proteins accumulate. BiP mobility is sensitive to exceptionally low levels of misfolded protein stressors and can detect intermediate states of BiP availability. Decreased BiP availability temporally correlates with UPR markers, but restoration of BiP availability correlates less well. Thus, BiP availability represents a novel and powerful tool for reporting global secretory protein misfolding levels and investigating the molecular events of ER stress in single cells, independent of traditional UPR markers.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.