Evidence for a novel interaction between key enzymes in the lipid biosynthesis pathway in <i>S. cerevisiae</i>
Bibliographic record
Abstract
Lipids are essential for energy storage and integrity of membranes in organisms ranging from humans to yeast. The biological properties of triglycerides and other lipids are determined by their composition and the order of assembly. Previous research has demonstrated that acyl‐CoA molecules are delivered to the enzymes involved in lipid biosynthesis in a specific order. It has been proposed that this ordered assembly is achieved by means of a membrane‐bound lipid synthesis complex in which the key enzymes interact through specific protein‐protein contacts. Preliminary data from yeast two‐hybrid and coimmunoprecipitation studies have revealed specific protein‐protein interactions between lipid synthesizing enzymes. Interactions were found between Ole1, the main desaturase in yeast, and Dga1, the terminal enzyme in the triglyceride synthesis pathway, as well as between Ole1 and Slc1, a protein that acylates lysophosphatidic acid. Future research aims to determine the other proteins in complex with Ole1 with a biotin ligase proximity assay and direct interactors via in vitro studies. This research is revealing the architecture of the enzyme complex and how it controls lipid synthesis and composition. Investigating the lipid biosynthesis complex will have implications for a wide variety of applied research, from treating lipid dysregulation in humans to biofuel production by microbes. Support or Funding Information NSERC, BioIndustrial Innovates Canada, Alberta Innovates Biofutures, University of Alberta Faculty of Medicine and Dentistry
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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 | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.003 | 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".