Braak stage 1, 100% of pigmented neurons left
parkinsonconnecting

Gene record

PPAT

phosphoribosyl pyrophosphate amidotransferase

translation score 0.49, 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
expressed broadly, no clear home in brain cells0.40
chemistry
Open Targets
compounds already reach it: mercaptopurine, azathioprine, azathioprine sodium1.00
trials
ClinicalTrials.gov
no Parkinson's trials on record: an open field1.00
literature
PubMed
2 Parkinson's papers of 6040.85
pathways
Reactome
1 pathway; mostly other0.30

No case: the score is under the bar. Receipt 11899

Sealed predictions

  1. PPAT in dopamine neurons, braak+0.27 (p 0.487) → -0.39 (p 0.293)receipt 11907

Swarm cases

receipt 11907: PPAT in dopamine neurons, braak

power
full sample -0.04 (p 0.874, n 18), 95% CI -0.50 to +0.43. the interval is wide: not enough donors to tell.
confounder
adjusted for sex: -0.13 (p 0.621, n 18). does not hold up.
composition
dopamine neurons share of nuclei vs axis +0.05 (p 0.854); controlling for it: -0.17 (p 0.493, n 18). could be the mix.
skeptic
leave-one-out range -0.15 to +0.08, sign flips 5; without severely affected donors -0.04 (p 0.874, n 18). fragile.
cell type
no other cell group does better.
axis
no measure beats "tracks Braak Lewy-body stage" for PPAT in dopamine neurons.

case closed: nothing better to follow up.

Receipts

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