Building Triketide ��-Pyrone-Producing Yeast Platform Using Heterologous Expression of Sporopollenin Biosynthetic Genes
Why this work is in the frame
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Bibliographic record
Abstract
Sporopollenin is an extremely robust biopolymer found in exine wall surrounding the spores of bryophytes and the male gametophyte of seed plants. The durable exine wall gives spores and pollen their resistance to high temperatures, prolonged desiccation, and exposure to UV radiation from the harsh terrestrial environment [1-3, 17, 18]. The chemical composition of sporopollenin remains poorly characterized because it is extremely resistant to chemical and biological degradation procedures. Recent studies have shown that hydroxylated -pyrone polyketide compounds, generated by the sequential action of Arabidopsis thaliana acyl-CoA synthetase 5 (ACOS5), polyketide synthase A and B (PKSA/B) and tetraketide -pyrone reductase 1 (TKPR1), in tapetum cells are key aliphatic constituents of sporopollenin Based on an in vitro model for -pyrone sporopollenin unit synthesis (Fig. The reduction of the tetraketide pyrone at the carbonyl function by TKPRs makes a hydroxylated -pyrone compound that is the proposed constituent of a sporopollenin polymer. However, it still remains to be determined whether these hydroxylated
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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 | 0.001 | 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 | 0.001 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.001 | 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