Braak stage 1, 100% of pigmented neurons left
parkinsonconnecting

Gene record

QKI

QKI, KH domain containing RNA binding

translation score 0.65, read 2026-10-17; 2 sealed predictions, 0 held; 2 receipts.

Six readers

readerfoundscore
genetics
Open Targets
genetic association 0.52 (overall 0.34)0.52
cell type
Human Protein Atlas
cell type enhanced in oligodendrocytes (5472 nCPM)1.00
chemistry
Open Targets
hard to drug0.00
trials
ClinicalTrials.gov
17 Parkinson's trials, 1 stopped0.95
literature
PubMed
2 Parkinson's papers of 4800.85
pathways
Reactome
1 pathway; mostly growth signalling0.60
proposal for QKI, translation score 0.65

Knock down and overexpress QKI in oligodendrocytes; measure phospho-ERK and phospho-AKT response to GDNF 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
phospho-ERK and phospho-AKT response to GDNF
Functional readout
α-synuclein uptake and myelin basic protein output under oxidative stress
Rule-out
If neither arm moves phospho-ERK 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 QKI in iPSC-derived oligodendrocytes; n = 3 differentiations; readouts: phospho-ERK and phospho-AKT response to GDNF; 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. QKI in oligodendrocytes, braak+0.68 (p 0.042) → +0.25 (p 0.517)receipt 0948
  2. QKI in dopamine neurons, braak-0.71 (p 0.032) → +0.86 (p 0.003)receipt 0949

Swarm cases

receipt 0949: QKI in dopamine neurons, braak

power
full sample +0.08 (p 0.761, n 18), 95% CI -0.40 to +0.53. the interval is wide: not enough donors to tell.
confounder
adjusted for sex: +0.07 (p 0.781, 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 -0.05 to +0.19, sign flips 2; without severely affected donors +0.08 (p 0.761, n 18). fragile.
cell type
no other cell group does better.
axis
no measure beats "tracks Braak Lewy-body stage" for QKI in dopamine neurons.

case closed: nothing better to follow up.

receipt 0948: QKI in oligodendrocytes, braak

power
full sample +0.45 (p 0.063, n 18), 95% CI -0.03 to +0.76. the interval is wide: not enough donors to tell.
confounder
adjusted for sex: +0.42 (p 0.082, n 18). does not hold up.
composition
oligodendrocytes share of nuclei vs axis +0.03 (p 0.915); controlling for it: +0.46 (p 0.054, n 18). could be the mix.
skeptic
leave-one-out range +0.38 to +0.60, sign flips 0; without severely affected donors +0.45 (p 0.063, n 18). robust.
cell type
no other cell group does better.
axis
no measure beats "tracks Braak Lewy-body stage" for QKI in oligodendrocytes.

case closed: nothing better to follow up.

Receipts

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