Neurogranin, a link between calcium/calmodulin and protein kinase C signaling in synaptic plasticity
Bibliographic record
Abstract
Neurogranin (Ng) (also named RC3, p17 or BICKS) is a small protein originally identified in rat brain and abundantly expressed in several telencephalic areas, such as the cerebral cortex, hippocampus, amygdala, and striatum. In neurons, it is found concentrated at dendritic spines where it participates in synaptic signaling events through the regulation of calmodulin (CaM) availability. Ng features an IQ motif that mediates its interaction with CaM and phosphatidic acid (PA) and that is phosphorylated by protein kinase C (PKC) at serine 36 (Ser36). Ser36-phosphorylated Ng is unable to bind either CaM or PA. Ng knockout mice display an apparently normal phenotype; however, they show severe deficits in spatial and emotional learning and a decrease in LTP induction, mostly due to the attenuation of the signaling that depends on calcium/CaM kinase II (CaMKII), PKC, and protein kinase A (PKA) activation. The present review is an update on the most relevant information about Ng expression, localization, interactions, and modifications as well as on its role in synaptic plasticity.
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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 | 0.000 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.002 | 0.003 |
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".