Molecular cloning of a <i>Brassica napus</i> thiohydroximate <i>S</i>‐glucosyltransferase gene and its expression in <i>Escherichia coli</i>
Bibliographic record
Abstract
A genomic clone encoding a thiohydroximate S-glucosyltransferase (S-GT) was isolated from Brassica napus by library screening with probes generated by PCR using degenerated primers. Its corresponding cDNA was amplified by rapid amplification of cDNA ends (RACE) PCR and also cloned by cDNA library screening. The genomic clone was 5 896 bp long and contained a 173-bp intron. At least two copies of the S-GT gene were present in B. napus. The full-length cDNA clone was 1.5 kb long and contained an open reading frame encoding a 51-kDa polypeptide. The deduced amino acid sequence shared a significant degree of homology with other glucosyltransferases characterized in other species, including a highly conserved motif within this family of enzymes corresponding to the glucose-binding domain. The recombinant protein was expressed in Escherichia coli, and the enzyme activity was tested by a biochemical assay based on the measure of glucose incorporation. The high thiohydroximate S-GT activity detected from the recombinant protein confirmed that this clone was indeed a S-glucosyltransferase.
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How this classification was reachedexpand
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 | 0.000 | 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 itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, 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".