The Structure of V214w From an Unidentified Fungus.
Bibliographic record
Abstract
While searching for novel biological activity during a recent reevaluation of samples from our Antibiotic Collection, we isolated the known antibiotic 6-epi-5'hydroxy-mycosporulone (1)1) from culture V214, an unidentified mitosporic fungus (Fig. 1).From this same organism we now report the isolation and structure elucidation of a second metabolite, V214w (2).Strain V214 was isolated from a soil sample collected from a sand dune along the Oregon coast.The organism was identified only as a member of the now obsolete order Sphaeropsidales.Pilot plant scale fermentation (300 liters) was carried out at 22℃ for 94.5 hours.The production medium consisted of glucose 2.0%, yeast extract 0.05%, ammonium tartrate 0.2%, MgSO4・7H2O 0.05%, KH2PO4 0.1%, KCl 0.05%, and FeSO4・7H2O 0.001%, pH 6.5.
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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) | 0.001 | 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 | 0.001 |
| Insufficient payload (model declined to judge) | 0.001 | 0.001 |
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".