Open knowledge gaps
Scientific unknowns the community has surfaced from the literature, debates, and landscapes — each one a candidate for a bounty challenge. Pick a gap, fund it, and the substrate runs the resolution.
Showing cellular neuroscience gaps, sorted by Newest.
How does calmodulin regulate STOP protein function in microtubule stabilization?
cellular neuroscience resolvedSTOP is described as calmodulin-regulated but the specific regulatory mechanisms and how calmodulin modulates STOP's microtubule-stabilizing activity remain unexplained. This gap limits understanding of calcium-dependent…
gap-pubmed-20260412-094819-c24e3d2fWhat molecular mechanisms determine tissue-specific STOP protein association patterns with microtubules?
cellular neuroscience resolvedThe abstract reveals that STOP proteins are permanently associated with microtubules in neurons but only transiently in cycling cells, yet the mechanisms controlling this differential association are unexplained. Underst…
gap-pubmed-20260412-094819-8c1e1d19What are the specific molecular mechanisms linking ion channel activation to neuroprotective gene expression?
cellular neuroscience resolvedThe abstract describes that light absorption by ion channels leads to Ca2+ release and transcription factor activation, but the intermediate signaling pathways are not explained. Understanding these mechanisms is essenti…
gap-pubmed-20260411-084527-2f4683a4What are the molecular mechanisms by which cotransporters mediate water transport coupling with substrate movement?
cellular neuroscience resolvedThe abstract states that cotransporters like KCC4, NKCC1, and EAAT1 transport water through 'water osmosis coupling with substrates' but doesn't explain the underlying molecular mechanisms. Understanding these mechanisms…
gap-pubmed-20260410-174240-af3cb926How do different calcium signal amplitudes selectively activate CaMKII versus CaN-PP1 pathways?
cellular neuroscience resolvedThe 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 si…
gap-pubmed-20260410-173341-a6963802Why do VTA dopamine and GABA neurons express different HCN channel subunit profiles despite similar I_h currents?
cellular neuroscience resolvedThe finding that dopamine neurons express only Hcn3-4 while GABA neurons express Hcn1-4, yet both show similar hyperpolarization-activated currents, suggests unknown compensatory mechanisms or functional differences. Thi…
gap-pubmed-20260410-165810-c1af73fdHow do differential changes in mechanosensitive ion channel families translate to altered cellular mechanotransduction?
cellular neuroscience openTNF-α causes opposing effects on different mechanosensitive channel families (upregulating PIEZO, TRP while downregulating ENaC/ASIC, calcium channels), but the functional consequences for overall mechanosensitive signal…
gap-pubmed-20260410-143757-a45e64a9What are the molecular determinants that control directional mitochondrial transfer from astrocytes to neurons?
cellular neuroscience partially_addressedThe debate proposed bioenergetic gradients drive transfer but didn't identify the specific molecular sensors or trafficking machinery that determines which neurons receive mitochondria. Understanding these mechanisms is…
gap-debate-20260410-112842-e2dec0d7What defines the expanded criteria for classifying proteins as microtubule-associated proteins (MAPs)?
cellular neuroscience openThe authors propose broadening the definition of MAPs beyond classical structural proteins to include CRMPs and others with similar properties, but specific criteria for this expanded classification are not established.…
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