Braak stage 1, 100% of pigmented neurons left
parkinsonconnecting

Gene record

TMEM175

transmembrane protein 175

translation score 0.58, read 2026-10-27; 3 sealed predictions, 1 held; 2 receipts.

Six readers

readerfoundscore
genetics
Open Targets
genetic association 0.88 (overall 0.60)0.88
cell type
Human Protein Atlas
expressed broadly, no clear home in brain cells0.40
chemistry
Open Targets
a small-molecule pocket0.60
trials
ClinicalTrials.gov
no Parkinson's trials on record: an open field1.00
literature
PubMed
83 Parkinson's papers of 1290.42
pathways
Reactome
in no curated pathway0.00
proposal for TMEM175, translation score 0.58

Knock down and overexpress TMEM175 in a dopamine neuron, astrocyte and microglia tri-culture; measure a transcriptome-wide state shift (bulk RNA-seq) and dopamine neuron survival after α-synuclein fibril challenge.

Cell type
a dopamine neuron, astrocyte and microglia tri-culture
Direction
Both arms: public data does not say which way helps.
Molecular readout
a transcriptome-wide state shift (bulk RNA-seq)
Functional readout
dopamine neuron survival after α-synuclein fibril challenge
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 TMEM175 in a tri-culture of iPSC dopamine neurons, astrocytes and microglia; n = 3 differentiations; readouts: a transcriptome-wide state shift (bulk RNA-seq); dopamine neuron survival after α-synuclein fibril challenge. Controls: non-targeting guide, empty vector. About 8 to 10 weeks, most of it differentiation.

Earlier readings: 2026-10-26 0.58; 2026-10-25 0.58; 2026-10-24 0.58; 2026-10-23 0.58.

Sealed predictions

  1. TMEM175 in dopamine neurons, braak+0.52 (p 3.8e-4) → +0.47 (p 0.002)held
  2. TMEM175 in dopamine neurons, braak-0.48 (p 0.187) → -0.09 (p 0.821)receipt 0564
  3. TMEM175 in dopamine neurons, resilience+0.06 (p 0.823) → +0.38 (p 0.190)receipt 0093

In the sealed studies

Swarm cases

receipt 0564: TMEM175 in dopamine neurons, braak

power
full sample -0.23 (p 0.360, n 18), 95% CI -0.63 to +0.27. the interval is wide: not enough donors to tell.
confounder
adjusted for sex: -0.27 (p 0.273, n 18). does not hold up.
composition
dopamine neurons share of nuclei vs axis +0.05 (p 0.854); controlling for it: -0.37 (p 0.135, n 18). could be the mix.
skeptic
leave-one-out range -0.42 to -0.16, sign flips 0; without severely affected donors -0.23 (p 0.360, n 18). fragile.
cell type
no other cell group does better.
axis
no measure beats "tracks Braak Lewy-body stage" for TMEM175 in dopamine neurons.

case closed: nothing better to follow up.

receipt 0093: TMEM175 in dopamine neurons, resilience

power
full sample +0.19 (p 0.323, n 55), 95% CI -0.07 to +0.44. the interval is wide: not enough donors to tell.
confounder
adjusted for age, sex and PMI: +0.12 (p 0.556, n 55). does not hold up.
composition
dopamine neurons share of nuclei vs axis +0.12 (p 0.542); controlling for it: +0.22 (p 0.256, n 55). could be the mix.
skeptic
leave-one-out range +0.12 to +0.31, sign flips 0; without severely affected donors +0.24 (p 0.241, n 46). fragile.
cell type
no other cell group does better.
axis
braak beats resilience for TMEM175 in dopamine neurons: +0.49 (p 2.1e-6, n 84). proposing braak.

case closed: every proposal failed a challenge.

Receipts

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