The O<sub>2</sub>-responsive repressor PpsR2 but not PpsR1 transduces a light signal sensed by the BphP1 phytochrome in<i>Rhodopseudomonas palustris</i>CGA009
Why this work is in the frame
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Bibliographic record
Abstract
Regulatory properties of bacteriophytochrome BphP1 were evaluated with respect to the photosynthesis gene transcription repressors PpsR1 and PpsR2 of Rhodopseudomonas palustris strain CGA009 in gene complementation, replacement and deletion experiments. The results indicate that 750 nm wavelength light activates BphP1 to antagonize repression of photosynthesis gene expression by PpsR2, but not PpsR1. It is suggested that an equilibrium exists between BphP1-active and -inactive conformations, with 750 nm light shifting the equilibrium to an active conformation, although a phenotypically detectable component of BphP1 is in the active conformation in the absence of illumination.
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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 | 0.002 | 0.000 |
| 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 | 0.001 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| 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