14‐3‐3 proteins regulate the intracellular localization of the transcriptional activator GmMYB176 and affect isoflavonoid synthesis in soybean
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Bibliographic record
Abstract
Isoflavonoids are legume-specific natural plant compounds that play important functions in nitrogen fixation as well as biotic and abiotic stress responses. Many clinical studies have suggested a role for isoflavonoids in human health and nutrition. We have recently identified an R1 MYB transcription factor GmMYB176 that regulates CHS8 gene expression and isoflavonoid biosynthesis. Here we demonstrate that binding of 14-3-3 proteins to GmMYB176 modulates this function. GmMYB176 interacts with all 16 14-3-3 proteins (SGF14s) in soybean (Glycine max) with varying activity. The detailed analysis of 14-3-3-binding sites within GmMYB176 identified a critical motif (D2) where Ser29 is potentially phosphorylated. Deletion of the D2 motif from GmMYB176 or substitution of Ser29 with an alanine abolished binding with SGF14 proteins, which altered the subcellular localization of GmMYB176. Overexpression of SGF14l in soybean hairy roots did not affect the transcript level of GmMYB176 but it reduced the expression levels of key isoflavonoid genes and isoflavonoid accumulation in soybean hairy root. Our results suggest that SGF14-GmMYB176 interaction regulates the intracellular localization of GmMYB176, thereby affecting isoflavonoid biosynthesis in soybean.
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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) | 0.000 | 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 | 0.000 |
| 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