Braak stage 1, 100% of pigmented neurons left
parkinsonconnecting

Gene record

GNG7

G protein subunit gamma 7

translation score 0.56, read 2026-10-26; 2 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
cell type enhanced, including oligodendrocytes; strongest in plasma cells0.75
chemistry
Open Targets
reachable by antibody0.45
trials
ClinicalTrials.gov
no Parkinson's trials on record: an open field1.00
literature
PubMed
3 Parkinson's papers of 1000.82
pathways
Reactome
29 pathways; mostly dopamine synapse1.00
proposal for GNG7, translation score 0.56

Knock down and overexpress GNG7 in oligodendrocytes; measure evoked dopamine release and dopamine transporter uptake 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
evoked dopamine release and dopamine transporter uptake
Functional readout
α-synuclein uptake and myelin basic protein output under oxidative stress
Rule-out
If neither arm moves evoked dopamine release 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 GNG7 in iPSC-derived oligodendrocytes; n = 3 differentiations; readouts: evoked dopamine release and dopamine transporter uptake; 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. GNG7 in oligodendrocytes, braak+0.12 (p 0.749) → -0.39 (p 0.300)receipt 10768
  2. GNG7 in dopamine neurons, braak-0.39 (p 0.305) → -0.04 (p 0.926)receipt 10769

Swarm cases

receipt 10769: GNG7 in dopamine neurons, braak

power
full sample -0.34 (p 0.161, n 18), 95% CI -0.70 to +0.15. the interval is wide: not enough donors to tell.
confounder
adjusted for sex: -0.37 (p 0.130, n 18). does not hold up.
composition
dopamine neurons share of nuclei vs axis +0.05 (p 0.854); controlling for it: -0.40 (p 0.099, n 18). could be the mix.
skeptic
leave-one-out range -0.47 to -0.25, sign flips 0; without severely affected donors -0.34 (p 0.161, n 18). fragile.
cell type
no other cell group does better.
axis
no measure beats "tracks Braak Lewy-body stage" for GNG7 in dopamine neurons.

case closed: nothing better to follow up.

receipt 10768: GNG7 in oligodendrocytes, braak

power
full sample -0.14 (p 0.591, n 18), 95% CI -0.57 to +0.35. the interval is wide: not enough donors to tell.
confounder
adjusted for sex: -0.08 (p 0.761, n 18). does not hold up.
composition
oligodendrocytes share of nuclei vs axis +0.03 (p 0.915); controlling for it: -0.14 (p 0.579, n 18). could be the mix.
skeptic
leave-one-out range -0.28 to -0.02, sign flips 0; without severely affected donors -0.14 (p 0.591, n 18). fragile.
cell type
no other cell group does better.
axis
no measure beats "tracks Braak Lewy-body stage" for GNG7 in oligodendrocytes.

case closed: nothing better to follow up.

Receipts

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