Braak stage 1, 100% of pigmented neurons left
parkinsonconnecting

Gene record

ATP13A2

ATPase cation transporting 13A2

translation score 0.65, read 2026-10-27; 3 sealed predictions, 1 held; 6 receipts.

Six readers

readerfoundscore
genetics
Open Targets
genetic association 0.94 (overall 0.87)0.94
cell type
Human Protein Atlas
cell type enhanced, including other brain neurons; strongest in retinal ganglion cells0.75
chemistry
Open Targets
a small-molecule pocket0.60
trials
ClinicalTrials.gov
1 Parkinson's trial, 0 stopped1.00
literature
PubMed
336 Parkinson's papers of 4330.23
pathways
Reactome
1 pathway; mostly other0.30
proposal for ATP13A2, translation score 0.65

Knock down and overexpress ATP13A2 in dopamine neurons; measure a transcriptome-wide state shift (bulk RNA-seq) and survival of TH-positive neurons and phospho-α-synuclein (pS129) inclusions after seeding with α-synuclein fibrils.

Cell type
dopamine neurons
Direction
Both arms: public data does not say which way helps.
Molecular readout
a transcriptome-wide state shift (bulk RNA-seq)
Functional readout
survival of TH-positive neurons and phospho-α-synuclein (pS129) inclusions after seeding with α-synuclein fibrils
Rule-out
If neither arm moves a transcriptome-wide state shift (bulk RNA-seq) 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 ATP13A2 in iPSC-derived midbrain dopamine neurons (FOXA2+, LMX1A+, TH+); n = 3 differentiations; readouts: a transcriptome-wide state shift (bulk RNA-seq); survival of TH-positive neurons and phospho-α-synuclein (pS129) inclusions after seeding with α-synuclein fibrils. Controls: non-targeting guide, empty vector. About 8 to 10 weeks, most of it differentiation.

Earlier readings: 2026-10-26 0.65; 2026-10-25 0.61; 2026-10-24 0.65; 2026-10-23 0.61.

Sealed predictions

  1. ATP13A2 in dopamine neurons, braak-0.34 (p 0.028) → -0.44 (p 0.004)held
  2. ATP13A2 in dopamine neurons, braak+0.49 (p 0.186) → -0.23 (p 0.549)receipt 0508
  3. ATP13A2 in dopamine neurons, resilience+0.23 (p 0.364) → -0.29 (p 0.374)receipt 0005

In the sealed studies

Swarm cases

receipt 0508: ATP13A2 in dopamine neurons, braak

power
full sample +0.07 (p 0.794, n 18), 95% CI -0.41 to +0.52. the interval is wide: not enough donors to tell.
confounder
adjusted for sex: +0.06 (p 0.827, 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 0.671, n 18). could be the mix.
skeptic
leave-one-out range -0.04 to +0.20, sign flips 4; without severely affected donors +0.07 (p 0.794, n 18). fragile.
cell type
no other cell group does better.
axis
no measure beats "tracks Braak Lewy-body stage" for ATP13A2 in dopamine neurons.

case closed: nothing better to follow up.

receipt 0005: ATP13A2 in dopamine neurons, resilience

power
full sample +0.07 (p 0.736, n 55), 95% CI -0.20 to +0.33. the interval is wide: not enough donors to tell.
confounder
adjusted for age, sex and PMI: +0.15 (p 0.449, n 55). does not hold up.
composition
dopamine neurons share of nuclei vs axis +0.12 (p 0.542); controlling for it: +0.02 (p 0.933, n 55). could be the mix.
skeptic
leave-one-out range -0.03 to +0.14, sign flips 1; without severely affected donors +0.04 (p 0.847, n 46). fragile.
cell type
no other cell group does better.
axis
braak beats resilience for ATP13A2 in dopamine neurons: -0.40 (p 1.8e-4, n 84). proposing braak.

case closed: every proposal failed a challenge.

Receipts

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