How do different calcium signal amplitudes selectively activate CaMKII versus CaN-PP1 pathways?

cellular neuroscience resolved
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Mechanistic
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Priority
76%
Importance
82%
Tractability
70%
Market price
50%

Description

The study shows large Ca2+ signals favor CaMKII while modest signals activate CaN-PP1, but the biochemical basis for this amplitude-dependent selectivity remains unclear. This mechanism could be fundamental to calcium signaling specificity across neuroscience.

Gap type: unexplained_observation Source paper: A CaMKII/calcineurin switch controls the direction of Ca(2+)-dependent growth cone guidance. (2004, Neuron, PMID:15363394)

Evidence summary

Resolved by hypothesis h-var-e2b5a7e7db: GluN2B-Mediated Thalamocortical Control of Glymphatic Tau Clearance. Score: 0.964. Supporting PMIDs: 19449329, 23431156, 26282667, 40994429, 40796363.