The diverse roles of complex glycans in synapse development and function
Bibliographic record
Abstract
Protein glycosylation is a critical post-translational modification that mediates a myriad of biological functions, including neuronal development in the brain. Stages of neuronal development include neurogenesis, neuronal migration, axonal guidance, synapse formation, and activity-dependent synaptic remodeling and plasticity. Among these, synapse formation and plasticity are essential to establish and maintain neuronal circuits for proper brain function. Yet, the physiological role of glycans at synapses remains poorly understood. This is especially true for complex glycans, known for decades to be present on the cell surface or extracellular matrix, including the microenvironment around synapses. In this review, we highlight recent examples of complex glycans to illustrate their roles in synapse formation and function. Based on these advances, we propose three principal models to categorize all examples in our discussion. We hope this will be beneficial for the field to begin a discussion on the conceptual framework underlying the role of glycans at synapses.
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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) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.001 | 0.002 |
| Science and technology studies | 0.000 | 0.001 |
| Scholarly communication | 0.001 | 0.002 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.002 | 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".