Braak stage 1, 100% of pigmented neurons left
parkinsonconnecting

Gene record

TAP1

transporter 1, ATP binding cassette subfamily B member

translation score 0.56, read 2026-10-24; 2 sealed predictions, 0 held; 2 receipts.

Six readers

readerfoundscore
genetics
Open Targets
no genetic evidence; overall 0.02 from other evidence0.00
cell type
Human Protein Atlas
cell type enhanced, including oligodendrocyte progenitor cells; strongest in podocytes0.75
chemistry
Open Targets
a small-molecule pocket0.60
trials
ClinicalTrials.gov
no Parkinson's trials on record: an open field1.00
literature
PubMed
3 Parkinson's papers of 1,2760.82
pathways
Reactome
2 pathways; mostly immune signalling0.90
proposal for TAP1, translation score 0.56

Knock down and overexpress TAP1 in oligodendrocytes; measure IL-1β and TNF release and surface HLA-DR and α-synuclein uptake and myelin basic protein output under oxidative stress.

Cell type
oligodendrocytes
Direction
Both arms: public data does not say which way helps.
Molecular readout
IL-1β and TNF release and surface HLA-DR
Functional readout
α-synuclein uptake and myelin basic protein output under oxidative stress
Rule-out
If neither arm moves IL-1β by 20% or more against non-targeting and empty-vector controls, across three independent differentiations, the hypothesis is wrong.
Lab request
CRISPRi knockdown and lentiviral overexpression of TAP1 in iPSC-derived oligodendrocytes; n = 3 differentiations; readouts: IL-1β and TNF release and surface HLA-DR; α-synuclein uptake and myelin basic protein output under oxidative stress. Controls: non-targeting guide, empty vector. About 8 to 10 weeks, most of it differentiation.

Sealed predictions

  1. TAP1 in dopamine neurons, braak-0.51 (p 0.161) → +0.05 (p 0.893)receipt 8396
  2. TAP1 in oligodendrocytes, braak-0.44 (p 0.233) → +0.29 (p 0.456)receipt 8395

Swarm cases

receipt 8396: TAP1 in dopamine neurons, braak

power
full sample -0.17 (p 0.504, n 18), 95% CI -0.59 to +0.32. the interval is wide: not enough donors to tell.
confounder
adjusted for sex: -0.13 (p 0.609, n 18). does not hold up.
composition
dopamine neurons share of nuclei vs axis +0.05 (p 0.854); controlling for it: -0.11 (p 0.658, n 18). could be the mix.
skeptic
leave-one-out range -0.34 to -0.07, sign flips 0; without severely affected donors -0.17 (p 0.504, n 18). fragile.
cell type
no other cell group does better.
axis
no measure beats "tracks Braak Lewy-body stage" for TAP1 in dopamine neurons.

case closed: nothing better to follow up.

receipt 8395: TAP1 in oligodendrocytes, braak

power
full sample -0.20 (p 0.418, n 18), 95% CI -0.61 to +0.29. the interval is wide: not enough donors to tell.
confounder
adjusted for sex: -0.26 (p 0.298, n 18). does not hold up.
composition
oligodendrocytes share of nuclei vs axis +0.03 (p 0.915); controlling for it: -0.16 (p 0.515, n 18). could be the mix.
skeptic
leave-one-out range -0.35 to -0.11, sign flips 0; without severely affected donors -0.20 (p 0.418, n 18). fragile.
cell type
no other cell group does better.
axis
no measure beats "tracks Braak Lewy-body stage" for TAP1 in oligodendrocytes.

case closed: nothing better to follow up.

Receipts

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