ID: h-3a0c21057e
Hypothesis

Kinesin-Dependent Peripheral Microtubule Transport Maintains Receptor Exclusion from SG Core

Kinesin-Dependent Peripheral Microtubule Transport Maintains Receptor Exclusion from SG Core starts from the claim that modulating KIF5B/KIF5C within the disease context of neurodegeneration can redirect a disease-relevant process.
🧬 KIF5B/KIF5C🩺 neurodegeneration🎯 Composite 49%💱 $0.51▲4.7%proposed
EvidencePending (0%)📖 0 cit🗣 1 debates 7 support 1 oppose
✓ All Quality Gates Passed
Mechanistic 0.48 (15%) Evidence 0.42 (15%) Novelty 0.58 (12%) Feasibility 0.55 (12%) Impact 0.48 (12%) Druggability 0.40 (10%) Safety 0.35 (8%) Competition 0.60 (6%) Data Avail. 0.52 (5%) Reproducible 0.58 (5%) KG Connect 0.50 (8%) 0.486 composite

🧪 Overview

Mechanistic Overview


Kinesin-Dependent Peripheral Microtubule Transport Maintains Receptor Exclusion from SG Core starts from the claim that modulating KIF5B/KIF5C within the disease context of neurodegeneration can redirect a disease-relevant process. The original description reads: "## Mechanistic Overview Kinesin-Dependent Peripheral Microtubule Transport Maintains Receptor Exclusion from SG Core starts from the claim that modulating KIF5B/KIF5C within the disease context of neurodegeneration can redirect a disease-relevant process. The original description reads: "## Mechanistic Overview Kinesin-Dependent Peripheral Microtubule Transport Maintains Receptor Exclusion from SG Core starts from the claim that SG periphery interfaces with microtubule-based transport machinery; kinesin motors actively translocate autophagy receptors to the peripheral shell. SG core, being solid-like arrested state, cannot engage motor-driven peripheralization. SQSTM1's LC8 dimer binding motifs and CALCOCO2's TBK1 phosphorylation facilitate transient microtubule-dependent positioning. Microtubule instability in neurodegeneration disrupts this mechanism.

...

🧬 Mechanism

🧬 Curated Mechanism Pathway

Curated pathway from expert analysis

flowchart TD
    A["KIF5B / KIF5C Kinesin-1<br/>Anterograde Axonal Motor"]
    B["KLC1 / KLC2 Light Chains<br/>Cargo Adaptor Scaffold"]
    C["Microtubule Plus-end Transport<br/>Soma to Periphery Delivery"]
    D["RNP Granule and mRNA Routing<br/>Stress Granule Component Exclusion"]
    E["KIF5 Dysfunction<br/>Transport Failure and SG Stalling"]
    F["TDP-43 / FUS Mislocalization<br/>Axonal Aggregate Pathology"]
    G["Motor Enhancement Strategy<br/>KIF5B / KIF5C Rescue"]
    A --> B
    B --> C
    C --> D
    D --> E
    E --> F
    G -.->|"restores"| C
    style A fill:#1a237e,stroke:#4fc3f7,color:#4fc3f7
    style E fill:#b71c1c,stroke:#ef9a9a,color:#ef9a9a
    style F fill:#b71c1c,stroke:#ef9a9a,color:#ef9a9a
    style G fill:#1b5e20,stroke:#81c784,color:#81c784

⚖️ Evidence

⚖️ Evidence Matrix7 supports1 contradicts
Supports
Kinesin-1 transports stress granules
Supports
SQSTM1 interactions with dynein/dynactin
Supports
The gE/gI complex is necessary for kinesin-1 recruitment during alphaherpesvirus egress from neurons.
J Virol2025PMID:39651860
Supports
RUSC2 and WDR47 oppositely regulate kinesin-1-dependent distribution of ATG9A to the cell periphery.
Mol Biol Cell2021PMID:34432492
Supports
Hypertrophy induced KIF5B controls mitochondrial localization and function in neonatal rat cardiomyocytes.
J Mol Cell Cardiol2016PMID:27094714
Supports
Gadkin: A novel link between endosomal vesicles and microtubule tracks.
Commun Integr Biol2010PMID:20798811
Supports
BORC Functions Upstream of Kinesins 1 and 3 to Coordinate Regional Movement of Lysosomes along Different Microtubule Tracks.
Cell Rep2016PMID:27851960
Contradicts
Does not explain receptor selectivity; many SG proteins not peripheral
📖 Linked Papers

No linked papers recorded for this hypothesis yet.

🏥 Translation

🧬 3D Protein Structure — KIF5B

No curated PDB or AlphaFold mapping for KIF5B yet. Search RCSB →

🧠 GTEx v10 Brain ExpressionJSON

Median TPM across 13 brain regions for KIF5B/KIF5C from GTEx v10.

Spinal cord cervical c-1204 Substantia nigra111 Amygdala83.9 Hippocampus74.1 Hypothalamus69.5 Cortex69.1 Frontal Cortex BA966.6 Nucleus accumbens basal ganglia62.8 Putamen basal ganglia59.9 Anterior cingulate cortex BA2458.5 Caudate basal ganglia52.2 Cerebellar Hemisphere52.1 Cerebellum49.5median TPM (GTEx v10)

💉 Clinical Trials

No clinical trials data linked to this hypothesis yet.

No curated ClinVar variants loaded for this hypothesis.

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

🔍 Search ClinVar for KIF5B →

No DepMap CRISPR Chronos data found for KIF5B.

Run python3 scripts/backfill_hypothesis_depmap.py to populate.

💰 Estimated Development
Cost
$0
Timeline

🏆 Tournament

🏆 Arenas / Elo

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📊 Market Indicators

7d Trend
Stable
7d Momentum
▲ 0.0%
Volatility
Low
0.0104
Events (7d)
0
Price History
▲4.7%

💾 Resource Usage

LLM Tokens
12,780
$0.0383
Total Cost
$0.0383

🔮 Predictions

🔎 Predictions vs Observations2 predictions · 0 with recorded observations
PredictionPredictedObservedStatusConf
IF KIF5B/KIF5C is genetically knocked down or pharmacologically inhibited in human iPSC-derived neurons, THEN autophagy receptors SQSTM1/p62 and CALCOCO2/NDP52 will accumulate within stress granule (SIncreased colocalization of SQSTM1 and CALCOCO2 with SG core markers (e.g., G3BP1) by ≥40% as measured by super-resolution microscopy, with corresponding decrea— no observation —pending0.00
IF microtubule instability is induced by low-dose vinblastine (10 nM) in neurons overexpressing KIF5B or KIF5C, THEN the overexpression will partially rescue peripheral localization of SQSTM1 and prevKIF5B/C overexpression will reduce SG core-localized SQSTM1 by ≥30% relative to vector control under microtubule-disrupting conditions, as quantified by image a— no observation —pending0.00
🔮 Falsifiable Predictions (2)
pendingconf 0%
IF KIF5B/KIF5C is genetically knocked down or pharmacologically inhibited in human iPSC-derived neurons, THEN autophagy receptors SQSTM1/p62 and CALCOCO2/NDP52 will accumulate within stress granule (SG) core regions rather than remaining peripheralized, within 48 hours post-transfection or treatment
Predicted outcome: Increased colocalization of SQSTM1 and CALCOCO2 with SG core markers (e.g., G3BP1) by ≥40% as measured by super-resolution microscopy, with correspond
Falsification: No significant change in SQSTM1/CALCOCO2 spatial distribution relative to SG core versus peripheral compartments after KIF5B/KIF5C inhibition; receptors remain peripheralized at levels indistinguishab
pendingconf 0%
IF microtubule instability is induced by low-dose vinblastine (10 nM) in neurons overexpressing KIF5B or KIF5C, THEN the overexpression will partially rescue peripheral localization of SQSTM1 and prevent its mislocalization to SG cores compared to vector control, within 12 hours of treatment.
Predicted outcome: KIF5B/C overexpression will reduce SG core-localized SQSTM1 by ≥30% relative to vector control under microtubule-disrupting conditions, as quantified
Falsification: KIF5B/KIF5C overexpression fails to alter SQSTM1 localization pattern under microtubule instability; receptors accumulate in SG cores equivalently in both vector and overexpression conditions, indicat

📖 References (2)

  1. Desmin in muscle and associated diseases: beyond the structural function.
    ["Hnia et al.. Cell and tissue research (2015)
  2. Crystal structure and mechanism of activation of TANK-binding kinase 1.
    ["Larabi et al.. Cell reports (2013)
Metadatasource: v1_phase_c_backfill · origin_type: debate_synthesizer
sourcev1_phase_c_backfill
origin_typedebate_synthesizer
_schema_version1
📊 Evidence Profile
Evidence Balance
+0%
Certainty
0%
Debates
0
Incoming
0
Outgoing
0
0 supporting 0 contradicting 0 neutral
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