KMP-11, a Basal Body and Flagellar Protein, Is Required for Cell Division in <i>Trypanosoma brucei</i>
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Bibliographic record
Abstract
Kinetoplastid membrane protein 11 (KMP-11) has been identified as a flagellar protein and is conserved among kinetoplastid parasites, but its potential function remains unknown. In a recent study, we identified KMP-11 as a microtubule-bound protein localizing to the flagellum as well as the basal body in both procyclic and bloodstream forms of Trypanosoma brucei (Z. Li, J. H. Lee, F. Chu, A. L. Burlingame, A. Gunzl, and C. C. Wang, PLoS One 3:e2354, 2008). Silencing of KMP-11 by RNA interference inhibited basal body segregation and cytokinesis in both forms and resulted in multiple nuclei of various sizes, indicating a continuous, albeit somewhat defective, nuclear division while cell division was blocked. KMP-11 knockdown in the procyclic form led to severely compromised formation of the new flagellum attachment zone (FAZ) and detachment of the newly synthesized flagellum. However, a similar phenotype was not observed in the bloodstream form depleted of KMP-11. Thus, KMP-11 is a flagellar protein playing critical roles in regulating cytokinesis in both forms of the trypanosomes. Its distinct roles in regulating FAZ formation in the two forms may provide a clue to the different mechanisms of cytokinetic initiation in procyclic and bloodstream trypanosomes.
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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