Regulators of Oxidative Stress Response Genes in<i>Escherichia Coli</i>and Their Conservation in Bacteria
Bibliographic record
Abstract
Bacterial responses to oxidative stress are complex, and they include both factors that prevent the accumulation of reactive oxygen species that are a normal by-product of metabolism and factors that repair damage caused by oxidative stress. An important biological imperative in bacteria is reducing the flux of reactive oxygen species within the cell by increasing levels of enzymes, including superoxide dismutase, catalase, and hydroperoxidase, in addition to sequestering transition metals, particularly iron that can exacerbate oxidative stress through the production of hydroxyl radicals. Regulation of protective factors is mediated by conserved regulators, including OxyR, controlling catalase and peroxidases; the SoxRS system, controlling superoxide dismutase; and RpoS, the general stress response regulator that potentiates expression of key protective enzymes in the stationary phase. Other regulators that maintain intracellular iron levels are also key conserved components of the oxidative stress response.
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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) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| 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) | 0.002 | 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".