Direct interaction between p53 and Tid1 proteins affects p53 mitochondrial localization and apoptosis
Bibliographic record
Abstract
The p53 tumor suppressor induces apoptosis in response to genotoxic and environmental stresses. Separately from its functions as a transcription factor, it is also capable to be translocated to the mitochondria and plays a critical role in transcription-independent mitochondrial apoptosis. We previously demonstrated that Tid1 interacts with p53, resulting in mitochondrial translocation of the complex and induction of intrinsic apoptosis [1]; however, the mechanism how they interact has been unknown. In this study, far western analyses demonstrated that Tid1 directly interacted with p53. Using domain deletion mutant constructs, we determined that DnaJ domain of Tid1 was necessary for the interaction, while either N- or C-terminal domains of p53 were sufficient for the interaction. In breast cancer cells, depletion of Tid1 by short hairpin RNA (shRNA) led to absence of p53 accumulation at mitochondria and resistance to apoptosis under hypoxic or genotoxic stresses. Our studies imply that Tid1 could be important in the potential combination chemotherapies of p53-related cancers.
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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) | 0.002 | 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".