MSK1 and MSK2 Mediate Mitogen- and Stress-Induced Phosphorylation of Histone H3: A Controversy Resolved
Why this work is in the frame
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Bibliographic record
Abstract
It is well established that mitogen- and stress-activated signal transduction pathways result in the rapid phosphorylation (Ser10 and Ser28) and acetylation of mammalian histone H3 associated with immediate-early genes. However, the prerequisite of H3 phosphorylation for the acetylation event and the identity of the mitogen-activated H3 kinase as RSK2 or MSK1 were controversial. A recent study with mouse embryonic fibroblasts lacking MSK1 and/or MSK2 demonstrated that MSK2 and MSK1 were the stimulus-induced H3 kinases and that neither of these enzyme activities was required for acetylation of H3 bound to immediate-early genes to occur.
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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) | 0.001 | 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