ID: hypothesis-h-8bd89d90
Hypothesis

Prohibitin-2 Mitochondrial Cross-Seeding Hub Disruption

Prohibitin-2 serves as a convergent mitochondrial platform where tau, α-synuclein, and TDP-43 interact and undergo conformational templating.
🧬 PHB2🩺 neurodegeneration🎯 Composite 47%💱 $0.46▲14.6%archived
EvidencePending (0%)📖 21 cit🗣 3 debates 3 support 3 oppose
✓ All Quality Gates Passed
Mechanistic 0.55 (15%) Evidence 0.45 (15%) Novelty 0.75 (12%) Feasibility 0.30 (12%) Impact 0.50 (12%) Druggability 0.25 (10%) Safety 0.30 (8%) Competition 0.80 (6%) Data Avail. 0.40 (5%) Reproducible 0.35 (5%) KG Connect 0.67 (8%) 0.469 composite
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🧪 Overview

Prohibitin-2 serves as a convergent mitochondrial platform where tau, α-synuclein, and TDP-43 interact and undergo conformational templating. Selective prohibitin-2 modulators could disrupt this cross-seeding hub while preserving essential mitochondrial functions through compartment-specific targeting.

🧬 Mechanism

🧬 Curated Mechanism Pathway

Curated pathway from expert analysis

graph TD
    A["PHB2 on Mitochondrial Inner Membrane"] --> B["Scaffolding/Structural Role"]
    B --> C["Cristae Organization"]
    B --> D["Mitophagy Receptor Function"]

    E["Tau"] --> F["Binds PHB2 on Mito Surface"]
    G["alpha-Synuclein"] --> F
    H["TDP-43"] --> F

    F --> I["PHB2 as Convergent Cross-Seeding Hub"]
    I --> J["Conformational Templating"]
    J --> K["Heterologous Protein Aggregation"]
    K --> L["Multi-Protein Toxic Complexes"]

    L --> M["Mitochondrial Membrane Disruption"]
    M --> N["Bioenergetic Collapse"]
    N --> O["Neurodegeneration"]

    P["PHB2 Modulator Therapy"] --> Q["Disrupt PHB2-Aggregate Interaction"]
    Q --> R["Block Cross-Seeding Platform"]
    R --> S["Prevent Multi-Protein Aggregation"]

    Q --> T["Preserve PHB2 Scaffolding Function"]
    T --> U["Maintained Cristae Integrity"]

    S --> V["Neuroprotection"]
    U --> V

    style A fill:#264653,stroke:#ffd54f,color:#e0e0e0
    style I fill:#3a1a1a,stroke:#ef9a9a,color:#e0e0e0
    style P fill:#1a3a4a,stroke:#4fc3f7,color:#e0e0e0
    style V fill:#2a3a1a,stroke:#c5e1a5,color:#e0e0e0

⚖️ Evidence

⚖️ Evidence Matrix3 supports3 contradicts
Supports
Prohibitin-2 interacts directly with both tau and α-synuclein at mitochondria
Supports
TDP-43 pathology involves mitochondrial dysfunction and prohibitin complex disruption
Supports
Prohibitin-2 modulates protein aggregation through conformational changes
Contradicts
Prohibitin-2 is essential for mitochondrial function, making selective modulation challenging
Contradicts
TDP-43 mitochondrial localization may be secondary to other pathological processes
Contradicts
Prohibitin complex disruption often reflects rather than causes neurodegeneration
📖 Linked Papers (21)Export BibTeX ↗
Figures
Figures
Figures available at source paper (no open-access XML found).
Figure 1
Figure 1
Minimum inhibitory concentration of vancomycin and teicoplanin for vancomycin-resistant Enterococcus faecium isolates during the outbreak. According to the cr...
Figure 2
Figure 2
Dendrogram of pulsotypes in pulsed-field gel electrophoresis and sequence types in multilocus sequence typing among vancomycin-resistant Enterococcus faecium ...
Figure 1.
Figure 1.
Quality control of multiple organelles by organelle-specific autophagy. (A) Mitophagy is of great importance in maintaining functional homeostasis of mitochondr...
Figure 2.
Figure 2.
Quality control of multiple organelles through organelle-specific autophagy in infection and sepsis. (A) Nucleophagy is critically involved in preventing the in...
Fig. 1
Fig. 1
Map of logger deployment sites in Belize.
Fig. 2
Fig. 2
Cross-sectional view of Carrie Bow Caye describing back reef and the two fore reefs in this area: inner fore reef and outer fore reef.
📙 Related Wiki Pages (15)

🏥 Translation

🧬 3D Protein Structure — PHB2

No curated PDB or AlphaFold mapping for PHB2 yet. Search RCSB →

🧠 GTEx v10 Brain ExpressionJSON

Median TPM across 13 brain regions for PHB2 from GTEx v10.

Cerebellar Hemisphere118 Cerebellum114 Frontal Cortex BA975.6 Cortex70.2 Spinal cord cervical c-165.6 Nucleus accumbens basal ganglia64.2 Hypothalamus58.4 Anterior cingulate cortex BA2456.8 Caudate basal ganglia56.1 Substantia nigra54.5 Putamen basal ganglia50.7 Amygdala49.0 Hippocampus47.0median TPM (GTEx v10)

💉 Clinical Trials (4)Relevance: 13%

2
Active
1
Completed
0
Total Enrolled
Phase III
Highest Phase
Completed·NCT02245620
Recruiting·NCT05269381

No curated ClinVar variants loaded for this hypothesis.

Run scripts/backfill_clinvar_variants.py to fetch P/LP/VUS variants.

🔍 Search ClinVar for PHB2 →

No DepMap CRISPR Chronos data found for PHB2.

Run python3 scripts/backfill_hypothesis_depmap.py to populate.

💰 Estimated Development
Cost
$0
Timeline
2.0 years

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🏆 Arenas / Elo

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📊 Market Indicators

7d Trend
Stable
7d Momentum
▼ 0.3%
Volatility
High
0.0701
Events (7d)
2
Price History
▲14.6%

💾 Resource Usage

LLM Tokens
36,356
$0.2181
Total Cost
$0.2181

🔮 Predictions

🔎 Predictions vs Observations3 predictions · 0 with recorded observations
PredictionPredictedObservedStatusConf
If hypothesis is true, intervention disrupt this hub while preserving PHB2's essential roles in mitochondrial cristae organization and PINK1-Parkin mitophagy signalingdisrupt this hub while preserving PHB2's essential roles in mitochondrial cristae organization and PINK1-Parkin mitophagy signaling— no observation —pending0.45
If hypothesis is true, intervention block tau/α-synuclein/TDP-43 bindingblock tau/α-synuclein/TDP-43 binding— no observation —pending0.45
If hypothesis is true, intervention be cleared accumulate, producing excess ROS and driving further aggregationbe cleared accumulate, producing excess ROS and driving further aggregation— no observation —pending0.45
🔮 Falsifiable Predictions (3)
pendingconf 45%
If hypothesis is true, intervention disrupt this hub while preserving PHB2's essential roles in mitochondrial cristae organization and PINK1-Parkin mitophagy signaling
Predicted outcome: disrupt this hub while preserving PHB2's essential roles in mitochondrial cristae organization and PINK1-Parkin mitophagy signaling
Falsification: Intervention fails to disrupt this hub while preserving PHB2's essential roles in mitochondrial cristae organization and PINK1-Parkin mitophagy signaling
pendingconf 45%
If hypothesis is true, intervention block tau/α-synuclein/TDP-43 binding
Predicted outcome: block tau/α-synuclein/TDP-43 binding
Falsification: Intervention fails to block tau/α-synuclein/TDP-43 binding
pendingconf 45%
If hypothesis is true, intervention be cleared accumulate, producing excess ROS and driving further aggregation
Predicted outcome: be cleared accumulate, producing excess ROS and driving further aggregation
Falsification: Intervention fails to be cleared accumulate, producing excess ROS and driving further aggregation
Related Entities
Metadata
statusproposed
diseaseneurodegeneration
target_genePHB2
target_pathwayNone
_schema_version1
composite_score0.465
📊 Evidence Profile Foundational
Evidence Balance
+0%
Certainty
100%
Debates
0
Incoming
620
Outgoing
139
0 supporting 0 contradicting 0 neutral
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