Braak stage 1, 100% of pigmented neurons left
parkinsonconnecting

Gene record

TBC1D20

TBC1 domain family member 20

translation score 0.54, read 2026-10-30; 1 sealed predictions, 0 held; 2 receipts.

Six readers

readerfoundscore
genetics
Open Targets
no genetic evidence; overall 0.00 from other evidence0.00
cell type
Human Protein Atlas
expressed broadly, no clear home in brain cells0.40
chemistry
Open Targets
a small-molecule pocket0.60
trials
ClinicalTrials.gov
no Parkinson's trials on record: an open field1.00
literature
PubMed
1 Parkinson's papers of 370.91
pathways
Reactome
2 pathways; mostly vesicle traffic1.00

No case: the score is under the bar. Receipt 15280

Sealed predictions

  1. TBC1D20 in dopamine neurons, braak-0.06 (p 0.888) → +0.10 (p 0.790)receipt 15287

Swarm cases

receipt 15287: TBC1D20 in dopamine neurons, braak

power
full sample +0.08 (p 0.748, n 18), 95% CI -0.40 to +0.53. the interval is wide: not enough donors to tell.
confounder
adjusted for sex: +0.16 (p 0.532, n 18). does not hold up.
composition
dopamine neurons share of nuclei vs axis +0.05 (p 0.854); controlling for it: +0.14 (p 0.567, n 18). could be the mix.
skeptic
leave-one-out range -0.03 to +0.22, sign flips 3; without severely affected donors +0.08 (p 0.748, n 18). fragile.
cell type
no other cell group does better.
axis
no measure beats "tracks Braak Lewy-body stage" for TBC1D20 in dopamine neurons.

case closed: nothing better to follow up.

Receipts

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