Braak stage 1, 100% of pigmented neurons left
parkinsonconnecting

Gene record

KCNN4

potassium calcium-activated channel subfamily N member 4

translation score 0.49, read 2026-10-20; 1 sealed predictions, 0 held; 2 receipts.

Six readers

readerfoundscore
genetics
Open Targets
no genetic evidence; overall 0.07 from other evidence0.00
cell type
Human Protein Atlas
expressed broadly, no clear home in brain cells0.40
chemistry
Open Targets
compounds already reach it: chlorzoxazone, senicapoc1.00
trials
ClinicalTrials.gov
no Parkinson's trials on record: an open field1.00
literature
PubMed
2 Parkinson's papers of 3040.85
pathways
Reactome
1 pathway; mostly other0.30

No case: the score is under the bar. Receipt 4132

Sealed predictions

  1. KCNN4 in dopamine neurons, braak-0.26 (p 0.502) → -0.10 (p 0.807)receipt 4139

Swarm cases

receipt 4139: KCNN4 in dopamine neurons, braak

power
full sample -0.21 (p 0.413, n 18), 95% CI -0.61 to +0.29. the interval is wide: not enough donors to tell.
confounder
adjusted for sex: -0.22 (p 0.384, n 18). does not hold up.
composition
dopamine neurons share of nuclei vs axis +0.05 (p 0.854); controlling for it: -0.38 (p 0.125, n 18). could be the mix.
skeptic
leave-one-out range -0.35 to -0.11, sign flips 0; without severely affected donors -0.21 (p 0.413, n 18). fragile.
cell type
strongest in microglia: -0.63 (p 0.0051, n 18) vs -0.21 in dopamine neurons. proposing microglia.
axis
no measure beats "tracks Braak Lewy-body stage" for KCNN4 in dopamine neurons.

follow-up registered; not confirmed in substantia nigra, an independent cohort.
follow-up KCNN4 · microglia · braak: substantia nigra, an independent cohort (Parkinson's or LBD vs controls) -0.55 p 0.051 (needs p < 4.8e-4)

Receipts

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