Braak stage 1, 100% of pigmented neurons left
parkinsonconnecting

Gene record

PRSS53

serine protease 53

translation score 0.56, read 2026-10-18; 1 sealed predictions, 0 held; 1 receipts.

Six readers

readerfoundscore
genetics
Open Targets
genetic association 0.23 (overall 0.15)0.23
cell type
Human Protein Atlas
cell type enhanced in brain excitatory neurons (6 nCPM)1.00
chemistry
Open Targets
reachable by antibody0.45
trials
ClinicalTrials.gov
no Parkinson's trials on record: an open field1.00
literature
PubMed
1 Parkinson's papers of 130.91
pathways
Reactome
in no curated pathway0.00
proposal for PRSS53, translation score 0.56

Knock down and overexpress PRSS53 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 PRSS53 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.

Sealed predictions

  1. PRSS53 in dopamine neurons, braak-0.61 (p 0.083) → -0.29 (p 0.443)receipt 2204

Swarm cases

receipt 2204: PRSS53 in dopamine neurons, braak

power
full sample -0.46 (p 0.057, n 18), 95% CI -0.76 to +0.01. the interval is wide: not enough donors to tell.
confounder
adjusted for sex: -0.49 (p 0.041, n 18). holds up.
composition
dopamine neurons share of nuclei vs axis +0.05 (p 0.854); controlling for it: -0.53 (p 0.022, n 18). not the mix.
skeptic
leave-one-out range -0.61 to -0.39, sign flips 0; without severely affected donors -0.46 (p 0.057, n 18). robust.
cell type
no other cell group does better.
axis
no measure beats "tracks Braak Lewy-body stage" for PRSS53 in dopamine neurons.

case closed: nothing better to follow up.

Receipts

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