Effects of oxyR Regulon, the Bacterial Antioxidant Defense on Escherichia coli's Growth and Reproduction
Why this work is in the frame
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Bibliographic record
Abstract
oxyR regulon was one of the earliest bacterial antioxidant defense system found by researchers. In Escherichia coli, oxyR regulon, including katG, ahpC, ahpF, was employed to cope with antioxidant response by directly scavenging H2O2, peroxide and so on. Although lots of research on the antioxidant have been reported, its effect on bacterial growth and reproduction is still not clear. The results of oxyR, ahpCF, katE/G gene mutant strains of E. coli showed that, due to the lock of ahpCF genes in mutant JI370, its endogenous H2O2 were reduced. The growth of JI370 was promoted. On the contrast, as for the mutant strains JI367 and LC74, the accumulation of endogenous H2O2 were significantly increased; their growth were inhibited. The accumulation of H2O2 was higher with the stronger inhibition. Compared with wild type strains, mutant strain JI370 and LC74 were affected more significantly in the early stage of growth. The results showed that in the endogenous H2O2 scavenging activities of CAT and AHP, AHP played a dominant role. And in the bacterial growth and reproduction, gene ahp was more important than kat.
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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 | 0.005 | 0.003 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.001 |
| Science and technology studies | 0.001 | 0.004 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 0.001 |
| 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