Unraveling the Mechanism of Protein Disaggregation Through a ClpB-DnaK Interaction
Why this work is in the frame
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Bibliographic record
Abstract
Dissecting Disaggregation The excessive accumulation of misfolded protein aggregates can overwhelm the cell's "quality control" machinery, leading to cell death. The yeast Hsp104 protein and its bacterial homolog ClpB are molecular chaperones that can "rescue" aggregated proteins by coupling the force generated from adenosine triphosphate hydrolysis to the progressive unfolding and threading of extended polypeptide segments through axial channels in these large molecular machines. Unfolded polypeptides emerging from the channel are refolded with the aid of a second chaperone system, DnaK/DnaJ/GrpE. DnaK also plays an important role in bringing regions of polypeptides within aggregates to ClpB to begin the solubilization process. Rosenzweig et al. (p. 1080 , published online 7 February; see the Perspective by Saibil ) describe a nuclear magnetic resonance–derived structure of the ClpB-DnaK complex, and verified it through mutagenesis and functional assays. The work clarifies the roles of each of the molecular players in the disaggregation reaction and provides a structural basis for the DnaK-ClpB interaction.
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Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| 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) | 0.000 | 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 it