Braak stage 1, 100% of pigmented neurons left
parkinsonconnecting

Gene record

SH3KBP1

SH3 domain containing kinase binding protein 1

translation score 0.60, read 2026-10-27; 2 sealed predictions, 0 held; 2 receipts.

Six readers

readerfoundscore
genetics
Open Targets
no genetic evidence; overall 0.00 from other evidence0.00
cell type
Human Protein Atlas
cell type enhanced, including microglia; strongest in neutrophils0.75
chemistry
Open Targets
reachable by antibody0.45
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
8 pathways; mostly vesicle traffic1.00
proposal for SH3KBP1, translation score 0.60

Knock down and overexpress SH3KBP1 in microglia; measure LRRK2 kinase activity (pT73-Rab10) and lysosome position and uptake and clearance of α-synuclein fibrils and NLRP3 inflammasome activation (IL-1β release).

Cell type
microglia
Direction
Both arms: public data does not say which way helps.
Molecular readout
LRRK2 kinase activity (pT73-Rab10) and lysosome position
Functional readout
uptake and clearance of α-synuclein fibrils and NLRP3 inflammasome activation (IL-1β release)
Rule-out
If neither arm moves LRRK2 kinase activity (pT73-Rab10) 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 SH3KBP1 in iPSC-derived microglia (iMGL); n = 3 differentiations; readouts: LRRK2 kinase activity (pT73-Rab10) and lysosome position; uptake and clearance of α-synuclein fibrils and NLRP3 inflammasome activation (IL-1β release). Controls: non-targeting guide, empty vector. About 8 to 10 weeks, most of it differentiation.

Sealed predictions

  1. SH3KBP1 in microglia, braak-0.14 (p 0.724) → -0.72 (p 0.028)receipt 12368
  2. SH3KBP1 in dopamine neurons, braak+0.20 (p 0.597) → -0.19 (p 0.631)receipt 12369

Swarm cases

receipt 12369: SH3KBP1 in dopamine neurons, braak

power
full sample +0.02 (p 0.942, n 18), 95% CI -0.45 to +0.48. the interval is wide: not enough donors to tell.
confounder
adjusted for sex: -0.04 (p 0.867, n 18). does not hold up.
composition
dopamine neurons share of nuclei vs axis +0.05 (p 0.854); controlling for it: -0.06 (p 0.820, n 18). could be the mix.
skeptic
leave-one-out range -0.10 to +0.16, sign flips 7; without severely affected donors +0.02 (p 0.942, n 18). fragile.
cell type
no other cell group does better.
axis
no measure beats "tracks Braak Lewy-body stage" for SH3KBP1 in dopamine neurons.

case closed: nothing better to follow up.

receipt 12368: SH3KBP1 in microglia, braak

power
full sample -0.24 (p 0.341, n 18), 95% CI -0.63 to +0.26. the interval is wide: not enough donors to tell.
confounder
adjusted for sex: -0.21 (p 0.398, n 18). does not hold up.
composition
microglia share of nuclei vs axis -0.11 (p 0.652); controlling for it: -0.19 (p 0.444, n 18). could be the mix.
skeptic
leave-one-out range -0.38 to -0.15, sign flips 0; without severely affected donors -0.24 (p 0.341, n 18). fragile.
cell type
no other cell group does better.
axis
no measure beats "tracks Braak Lewy-body stage" for SH3KBP1 in microglia.

case closed: nothing better to follow up.

Receipts

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