A dinoflagellate CDK5‐like cyclin‐dependent kinase
Why this work is in the frame
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Bibliographic record
Abstract
BACKGROUND INFORMATION: Mitosis during the dinoflagellate cell cycle is unusual in that the nuclear envelope remains intact and segregation of the permanently condensed chromosomes uses a cytoplasmic mitotic spindle. To examine regulation of the dinoflagellate cell cycle in the context of these unusual nuclear features, it is necessary to isolate and characterize cell cycle regulators such as CDK (cyclin-dependent kinase). RESULTS: We report the characterization of a CDK from the dinoflagellate Lingulodinium polyedrum. This CDK reacts with an anti-PSTAIRE antibody and was identified by protein microsequencing after partial purification. The protein microsequence shows homology toward the Pho85/CDK5 clade of CDKs. Neither the amount nor the phosphorylation state changed over the course of the cell cycle, in agreement with results reported for CDK5 family members in other systems. CONCLUSIONS: We conclude we have probably isolated a dinoflagellate CDK5-like protein. The data reported here support the identification of this protein as a CDK5 homologue, and suggest that dinoflagellates may contain several CDK families.
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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