Braak stage 1, 100% of pigmented neurons left
parkinsonconnecting

Gene record

PPP3CA

protein phosphatase 3 catalytic subunit alpha

translation score 0.47, read 2026-10-27; 1 sealed predictions, 0 held; 2 receipts.

Six readers

readerfoundscore
genetics
Open Targets
no genetic evidence; overall 0.01 from other evidence0.00
cell type
Human Protein Atlas
cell type enhanced, including brain inhibitory neurons; strongest in prostatic glandular cells0.75
chemistry
Open Targets
reachable by antibody: voclosporin0.45
trials
ClinicalTrials.gov
no Parkinson's trials on record: an open field1.00
literature
PubMed
3 Parkinson's papers of 1970.82
pathways
Reactome
5 pathways; mostly other0.30

No case: the score is under the bar. Receipt 11403

Sealed predictions

  1. PPP3CA in dopamine neurons, braak+0.06 (p 0.886) → -0.42 (p 0.258)receipt 11414

Swarm cases

receipt 11414: PPP3CA in dopamine neurons, braak

power
full sample -0.06 (p 0.820, n 18), 95% CI -0.51 to +0.42. the interval is wide: not enough donors to tell.
confounder
adjusted for sex: -0.01 (p 0.962, n 18). does not hold up.
composition
dopamine neurons share of nuclei vs axis +0.05 (p 0.854); controlling for it: -0.06 (p 0.807, n 18). could be the mix.
skeptic
leave-one-out range -0.21 to +0.07, sign flips 4; without severely affected donors -0.06 (p 0.820, n 18). fragile.
cell type
strongest in oligodendrocytes: -0.59 (p 0.0096, n 18) vs -0.06 in dopamine neurons. proposing oligodendrocytes.
axis
no measure beats "tracks Braak Lewy-body stage" for PPP3CA in dopamine neurons.

follow-up registered; not confirmed in substantia nigra, an independent cohort.
follow-up PPP3CA · oligodendrocytes · braak: substantia nigra, an independent cohort (Parkinson's or LBD vs controls) +0.07 p 0.790 (needs p < 1.9e-4)

Receipts

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