The disruption of COPII vesicles activates HSF-1 through SEC-23
Bibliographic record
Abstract
HSF-1 is a highly conserved transcription factor that plays a central role in protecting organisms from diverse cellular stresses. However, the mechanisms by which HSF-1 senses and responds to different types of stress remain incompletely understood. COPII-coated vesicles, responsible for transporting cargo from the endoplasmic reticulum to the Golgi apparatus, are essential for protein secretion and cellular homeostasis. Disruption of these vesicles impairs protein secretion and triggers severe proteotoxic stress. Here, we show that HSF-1 directly monitors COPII vesicle dysfunction through interactions with the core COPII component SEC-23, in both Caenorhabditis elegans and NIH3T3 cells. Inhibition of SEC-23 or SAR-1 disrupts COPII vesicle formation, leading to the release of HSF-1 from the COPII complex. This release induces a specific transcriptomic change to restore protein homeostasis. Our findings reveal a conserved mechanism by which HSF-1 responds to COPII vesicle dysregulation, providing new insights into the HSF-1-centered proteostasis network.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.001 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".