Braak stage 1, 100% of pigmented neurons left
parkinsonconnecting

Gene record

PPP2CA

protein phosphatase 2 catalytic subunit alpha

translation score 0.54, read 2026-10-18; 1 sealed predictions, 0 held; 2 receipts.

Six readers

readerfoundscore
genetics
Open Targets
no genetic evidence; overall 0.26 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: lb-1000.90
trials
ClinicalTrials.gov
1 Parkinson's trial, 0 stopped1.00
literature
PubMed
4 Parkinson's papers of 1830.79
pathways
Reactome
38 pathways; mostly protein handling0.90

No case: the score is under the bar. Receipt 1571

Sealed predictions

  1. PPP2CA in dopamine neurons, braak+0.79 (p 0.012) → +0.35 (p 0.360)receipt 1578

Swarm cases

receipt 1578: PPP2CA in dopamine neurons, braak

power
full sample +0.64 (p 0.0042, n 18), 95% CI +0.25 to +0.85. the interval excludes zero: something may be there, smaller than a half can see.
confounder
adjusted for sex: +0.64 (p 0.0042, n 18). holds up.
composition
dopamine neurons share of nuclei vs axis +0.05 (p 0.854); controlling for it: +0.60 (p 0.0080, n 18). not the mix.
skeptic
leave-one-out range +0.60 to +0.80, sign flips 0; without severely affected donors +0.64 (p 0.0042, n 18). robust.
cell type
no other cell group does better.
axis
no measure beats "tracks Braak Lewy-body stage" for PPP2CA in dopamine neurons.

case closed: nothing better to follow up.

Receipts

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