Conjugation of Synthetic <i>N</i>-Acetyl-Lactosamine to Azide-Containing Proteins Using the Staudinger Ligation
Bibliographic record
Abstract
Generation of defined glycoconjugates is necessary for the study of glycoprotein function, as well as the development of therapeutics. The biosynthesis of glycoproteins produces multiple glycoforms, proteins which differ only in the structure of the attached glycan. This inherent heterogeneity complicates the study of isolated glycans and, in particular, could obscure the role of individual glycan epitopes in biological function. We present a general strategy based on the Staudinger ligation to introduce specific glycan epitopes onto azide-containing proteins. The use of a phosphane-based Staudinger reagent allows for extremely mild reaction conditions which can be applied to aqueous proteins or cells. We demonstrate that multiple carbohydrate epitopes can be incorporated onto a protein backbone, and that the resulting glycans are competent for recognition by lectins. We propose that this general strategy will allow for testing the role of specific glycan epitopes in cellular and biochemical assays and increasing the stability of protein conjugates.
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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".