Bibliographic record
Abstract
Calcium entry into nerve termini via voltage gated calcium channels is an essential step in neurotransmission. Consequently, second messenger regulation of calcium channel activity modulates synaptic activity. It has been suggested that calcium channels must physically couple to the release machinery, and a physical interaction between a synaptic protein interaction (synprint) site contained within mammalian presynaptic calcium channels and synaptic proteins such as syntaxin 1, SNAP-25, and synaptotagmin has been demonstrated. Interestingly, synaptic calcium channels in invertebrates lack this region. In invertebrates, synaptic transmission is instead dependent on a presynaptic calcium channel splice variant that can physically associate with the adaptor proteins Mint-1 and CASK. We suggest that in the absence of a synprint region, these proteins may localize calcium channels to the synaptic release machinery. The interactions between synaptic proteins and mammalian N-type calcium channels serves to regulate calcium channel activity directly, as well as indirectly by altering second messenger regulation of the channels. This provides for a feedback mechanism that allows the fine-tuning of calcium channel activity during various steps in neurotransmitter release. This does not occur with invertebrate synaptic calcium channel homologs, suggesting that the regulation of calcium channel activity by synaptic proteins is a mechanism unique to vertebrates.
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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 | 0.001 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 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".