Braak stage 1, 100% of pigmented neurons left
parkinsonconnecting

Gene record

PCGF2

polycomb group ring finger 2

translation score 0.53, read 2026-10-18; 2 sealed predictions, 0 held; 3 receipts.

Six readers

readerfoundscore
genetics
Open Targets
no genetic evidence; overall 0.21 from other evidence0.00
cell type
Human Protein Atlas
cell type enhanced, including oligodendrocyte progenitor cells; strongest in proximal tubule cells0.75
chemistry
Open Targets
hard to drug0.00
trials
ClinicalTrials.gov
no Parkinson's trials on record: an open field1.00
literature
PubMed
no papers tie it to Parkinson's yet1.00
pathways
Reactome
7 pathways; mostly protein handling0.90

No case: the score is under the bar. Receipt 1986

Sealed predictions

  1. PCGF2 in dopamine neurons, braak-0.94 (p 2.1e-4) → -0.10 (p 0.807)receipt 1994
  2. PCGF2 in oligodendrocytes, braak-0.39 (p 0.298) → +0.46 (p 0.217)receipt 1993

Swarm cases

receipt 1994: PCGF2 in dopamine neurons, braak

power
full sample -0.60 (p 0.0080, n 18), 95% CI -0.84 to -0.19. the interval excludes zero: something may be there, smaller than a half can see.
confounder
adjusted for sex: -0.61 (p 0.0075, n 18). holds up.
composition
dopamine neurons share of nuclei vs axis +0.05 (p 0.854); controlling for it: -0.71 (p 0.0010, n 18). not the mix.
skeptic
leave-one-out range -0.74 to -0.56, sign flips 0; without severely affected donors -0.60 (p 0.0080, n 18). robust.
cell type
no other cell group does better.
axis
no measure beats "tracks Braak Lewy-body stage" for PCGF2 in dopamine neurons.

case closed: nothing better to follow up.

receipt 1993: PCGF2 in oligodendrocytes, braak

power
full sample +0.12 (p 0.646, n 18), 95% CI -0.37 to +0.55. the interval is wide: not enough donors to tell.
confounder
adjusted for sex: +0.16 (p 0.538, n 18). does not hold up.
composition
oligodendrocytes share of nuclei vs axis +0.03 (p 0.915); controlling for it: -0.23 (p 0.369, n 18). could be the mix.
skeptic
leave-one-out range +0.02 to +0.26, sign flips 0; without severely affected donors +0.12 (p 0.646, n 18). fragile.
cell type
strongest in dopamine neurons: -0.60 (p 0.0080, n 18) vs +0.12 in oligodendrocytes. proposing dopamine neurons.
axis
no measure beats "tracks Braak Lewy-body stage" for PCGF2 in oligodendrocytes.

follow-up registered; not confirmed in substantia nigra, an independent cohort.
follow-up PCGF2 · dopamine neurons · braak: substantia nigra, an independent cohort: not measured

Receipts

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