🧪
hypothesis

HSP70 Co-chaperone DNAJB6 Universal Cross-Seeding Inhibitor

Hypothesis

HSP70 Co-chaperone DNAJB6 Universal Cross-Seeding Inhibitor

DNAJB6 specifically recognizes and suppresses amyloidogenic β-sheet conformations shared across tau, α-synuclein, and TDP-43 aggregates.
🧬 DNAJB6🩺 neurodegeneration🎯 Composite 54%💱 $0.51▼30.7%proposed
🟡 ALS / Motor Neuron Disease🔴 Alzheimer's Disease🔮 Lysosomal / Autophagy🔥 Neuroinflammation
EvidencePending (0%)📖 16 cit🗣 3 debates 3 support 3 oppose
✓ All Quality Gates Passed
Mechanistic 0.65 (15%) Evidence 0.45 (15%) Novelty 0.80 (12%) Feasibility 0.45 (12%) Impact 0.60 (12%) Druggability 0.35 (10%) Safety 0.40 (8%) Competition 0.80 (6%) Data Avail. 0.50 (5%) Reproducible 0.55 (5%) KG Connect 0.68 (8%) 0.544 composite
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arXiv PreprintNeurIPSNature MethodsPLOS ONE
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Composite54%

🧪 Overview

DNAJB6 specifically recognizes and suppresses amyloidogenic β-sheet conformations shared across tau, α-synuclein, and TDP-43 aggregates. Enhanced DNAJB6 expression or small molecule activators could provide broad-spectrum protection against cross-seeding by disrupting the common structural motifs that enable heterologous nucleation.

🧬 Mechanism

🧬 Curated Mechanism Pathway

Curated pathway from expert analysis

graph TD
    A["Misfolded Protein Seeds"] --> B["alpha-Synuclein Aggregation"]
    A --> C["Tau Fibrillization"]
    A --> D["TDP-43 Inclusion Formation"]

    B --> E["Cross-Seeding Between Proteins"]
    C --> E
    D --> E

    E --> F["Amplified Aggregate Toxicity"]
    F --> G["Neurodegeneration Spread"]

    H["DNAJB6 Co-chaperone"] --> I["J-Domain Binds HSP70"]
    I --> J["HSP70 ATPase Activation"]
    J --> K["Substrate Recognition"]

    K --> L["Bind Amyloid Nuclei"]
    L --> M["Block Fibril Elongation"]
    L --> N["Prevent Cross-Seeding"]

    O["DNAJB6 Upregulation Therapy"] --> P["Enhanced DNAJB6 Expression"]
    P --> Q["Increased HSP70 Recruitment"]
    Q --> R["Universal Anti-Aggregation"]

    R --> S["Inhibit alpha-Syn Fibrillization"]
    R --> T["Inhibit Tau Aggregation"]
    R --> U["Inhibit TDP-43 Inclusions"]

    S --> V["Pan-Neurodegenerative Protection"]
    T --> V
    U --> V

    style A fill:#4a1942,stroke:#ce93d8,color:#e0e0e0
    style H fill:#1a3a4a,stroke:#4fc3f7,color:#e0e0e0
    style R fill:#1a3a2a,stroke:#81c784,color:#e0e0e0
    style V fill:#2a3a1a,stroke:#c5e1a5,color:#e0e0e0

⚖️ Evidence

⚖️ Evidence Matrix3 supports3 contradicts
Supports
DNAJB6 potently inhibits polyglutamine aggregation and maintains soluble protein conformations
PMID:23064266
Supports
HSP70 co-chaperones show specificity for misfolded β-sheet structures across different amyloidogenic proteins
PMID:31358969
Supports
DNAJB6 variants are associated with reduced risk of multiple neurodegenerative diseases
PMID:28887542
Contradicts
DNAJB6 overexpression can actually promote tau aggregation in some contexts by interfering with normal proteostasis
PMID:28302677
Contradicts
HSP70 co-chaperones show substrate specificity that may not translate across different amyloidogenic proteins
PMID:30833379
Contradicts
DNAJB6 mutations cause myopathy through gain-of-function mechanisms, suggesting enhanced activity may be harmful
PMID:23064266
📖 Linked Papers (16)Export BibTeX ↗
[WALANT - Wide Awake Local Anaesthesia No Tourniquet: Complications in elective and acute traumatological Hand Surgery Procedures].
Handchirurgie, Mikrochirurgie, plastische Chirurgie : Organ der Deutschsprachigen Arbeitsgemeinschaft fur Handchirurgie : Organ der Deutschsprachigen Arbeitsgemeinschaft fur Mikrochirurgie der Peripheren Nerven und Gefasse : Organ der V... (2022) · PubMed:35168268 ↗
1 figure
Figures
Figures
Figures available at source paper (no open-access XML found).
Successful Nonoperative Treatment of Osteochondritis Dissecans of the Humeral Capitellum in a Young Baseball Player with Advanced Skeletal Maturity.
Progress in rehabilitation medicine (2021) · PubMed:34825100 ↗
4 figures
Fig. 1.
Fig. 1.
Sonographic image of OCD of the humeral capitellum in the sagittal plane showing irregularity and discontinuity of the subchondral bone.
Fig. 2.
Fig. 2.
(A) Radiograph taken at the first examination showing an osteochondral lesion on the lateral side of the capitellum and new bone formation along the lateral sid...
Engineering complex communities by directed evolution.
Nature ecology & evolution (2021) · PubMed:33986540 ↗
9 figures
Extended Data Figure 1.
Extended Data Figure 1.
Non-additive function, costly function, and two empirically motivated functions. (A) Illustration of the different types of community function we have considere...
Extended Data Figure 2.
Extended Data Figure 2.
Alternative ecological scenarios with metabolic cross-feeding. Besides the rich medium without cross-feeding shown in the main text, we have included two other ...
Functional characterization of 84 PALB2 variants of uncertain significance.
Genetics in medicine : official journal of the American College of Medical Genetics (2020) · PubMed:31636395 ↗
4 figures
Fig. 1
Fig. 1
Homology directed repair assay of PALB2 variants. ( a ) Plot of all variants assayed in homologous recombination (HR) repair assay. Results for each independen...
Fig. 2
Fig. 2
Influence of PALB2 variants on protein complex formation and protein half-life. ( a ) Western blot analysis of PALB2-interacting proteins after coimmunoprecipi...
DNAJB6: A guardian against neurodegeneration.
Neural regeneration research (2026) · PubMed:40536953 ↗
No figures
Multiplex neurodegeneration proteotoxicity platform reveals DNAJB6 promotes non-toxic FUS condensate gelation and inhibits neurotoxicity.
Nature communications (2025) · PubMed:41271702 ↗
No figures
DNAJB6 mutants display toxic gain of function through unregulated interaction with Hsp70 chaperones.
Nature communications (2023) · PubMed:37923706 ↗
No figures
Extracellular chaperone networks and the export of J-domain proteins.
The Journal of biological chemistry (2023) · PubMed:36581212 ↗
No figures
The chaperone DNAJB6 surveils FG-nucleoporins and is required for interphase nuclear pore complex biogenesis.
Nature cell biology (2022) · PubMed:36302971 ↗
No figures
A 20-year Clinical and Genetic Neuromuscular Cohort Analysis in Lebanon: An International Effort.
Journal of neuromuscular diseases (2022) · PubMed:34602496 ↗
No figures
DNAJB6 suppresses alpha-synuclein induced pathology in an animal model of Parkinson's disease.
Neurobiology of disease (2021) · PubMed:34390836 ↗
No figures
Panorama of the distal myopathies.
Acta myologica : myopathies and cardiomyopathies : official journal of the Mediterranean Society of Myology (2020) · PubMed:33458580 ↗
No figures
📙 Related Wiki Pages (15)
EEDgeneDNAJB6 GenegeneAlibaba Tongyi Qianwen-Bio (Chinese Biomai_toolNeurodegenerationdiseaseDNAJB6 ProteinproteinDNAJB2 — DNAJ Heat Shock Protein Family geneAmyotrophic Lateral SclerosisredirectDNAJB5 (DnaJ Heat Shock Protein Family MgeneFrontotemporal DementiadiseaseParkinson's DiseasediseaseDiffuse Amyloid Deposits in Alzheimer's mechanismAlzheimer's DiseasediseaseGenesindexDNAJB12 — DnaJ Heat Shock Protein FamilygeneBrain Regionsindex

🏥 Translation

🧬 3D Protein Structure — DNAJB6

No curated PDB or AlphaFold mapping for DNAJB6 yet. Search RCSB →

🧠 GTEx v10 Brain ExpressionJSON

Median TPM across 13 brain regions for DNAJB6 from GTEx v10.

Cerebellar Hemisphere27.5 Spinal cord cervical c-120.7 Cerebellum19.7 Frontal Cortex BA919.2 Hypothalamus15.3 Anterior cingulate cortex BA2414.3 Nucleus accumbens basal ganglia12.9 Cortex12.8 Substantia nigra12.6 Caudate basal ganglia11.5 Hippocampus11.2 Amygdala11.1 Putamen basal ganglia9.5median TPM (GTEx v10)

💉 Clinical Trials (5)Relevance: 38%

0
Active
0
Completed
1,240
Total Enrolled
PHASE1
Highest Phase
Neuroinflammation and Neurodegeneration in HIV-positive Subjects Switched and Initially Treated With INSTINA
UNKNOWN·NCT04887675 · University of Novi Sad
120 enrolled · 2021-05-01 · → 2022-06-01
Since the HIV changed its course to the chronic disease, high incidence of metabolic syndrome both in HIV positive and negative subjects has become an issue. Given the successful peripheral suppressio
HIV I Infection HIV Associated Lipodystrophy Metabolic Syndrome
MRI
An Innovative Method in SAliva Samples for the Early Differential Diagnosis of High-impact NeuroDegenerative Diseases Through Raman SpectroscopyUnknown
ENROLLING_BY_INVITATION·NCT06875739 · Fondazione Don Carlo Gnocchi Onlus
310 enrolled · 2025-02-14 · → 2026-10-01
The aim of the study is to validate a salivary test that allows for rapid and accurate objective diagnosis in the context of neurodegenerative diseases, a complex of diseases that includes Alzheimer's
Neurodegenerative Disorders Parkinson Disease Alzheimer Disease
Natural History of Glycosphingolipid Storage Disorders and Glycoprotein DisordersUnknown
RECRUITING·NCT00029965 · National Human Genome Research Institute (NHGRI)
200 enrolled · 2002-02-06
Study description: This is a natural history study that will evaluate any patient with enzyme or DNA confirmed GM1 or GM2 gangliosidosis, sialidosis or galactosialidosis. Patients may be evaluated ev
Neurological Regression Myoclonus Cherry Red Spot
Retinal and Cognitive Dysfunction in Type 2 DiabetesUnknown
COMPLETED·NCT04281186 · Hospital Universitari Vall d'Hebron Research Institute
510 enrolled · 2020-11-16 · → 2024-12-12
The retina shares similar embryologic origin, anatomical features and physiological properties with the brain and hence offers a unique and accessible "window" to study the correlates and consequences
Retinal Function Cognitive Dysfunction Microperimetry
A Noval Tau Tracer in Young Onset DementiaPHASE1
UNKNOWN·NCT04248270 · Chang Gung Memorial Hospital
100 enrolled · 2020-02-20 · → 2023-08-17
Dementia is a clinical syndrome which characterized by progressive cognitive impairment, behavior disturbance and dysfunction of daily activity. In aging population, Alzheimer's dementia (AD) is the m
Alzheimer's Disease Vascular Dementia Dementia
18F-PM-PBB3

No curated ClinVar variants loaded for this hypothesis.

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

🔍 Search ClinVar for DNAJB6 →

No DepMap CRISPR Chronos data found for DNAJB6.

Run python3 scripts/backfill_hypothesis_depmap.py to populate.

💰 Estimated Development
Cost
$0
Timeline
2.0 years

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📊 Market Indicators

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Volatility
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Events (7d)
3
Price History
▼30.7%

💾 Resource Usage

LLM Tokens
36,356
$0.2181
Total Cost
$0.2181

🔮 Predictions

🔎 Predictions vs Observations4 predictions · 0 with recorded observations
PredictionPredictedObservedStatusConf
If hypothesis is true, intervention otherwise facilitate heterologous protein recruitmentotherwise facilitate heterologous protein recruitment— no observation —pending0.45
If hypothesis is true, intervention require a multi-faceted experimental approach combining in vitro biochemical assays, cell culture models, and in vivo studiesrequire a multi-faceted experimental approach combining in vitro biochemical assays, cell culture models, and in vivo studies— no observation —pending0.45
If hypothesis is true, intervention address the fundamental mechanism underlying protein aggregation and cross-seedingaddress the fundamental mechanism underlying protein aggregation and cross-seeding— no observation —pending0.45
If hypothesis is true, intervention provide broad-spectrum protection against multiple neurodegenerative diseases simultaneouslyprovide broad-spectrum protection against multiple neurodegenerative diseases simultaneously— no observation —pending0.45
🔮 Falsifiable Predictions (4)
pendingconf 45%
If hypothesis is true, intervention otherwise facilitate heterologous protein recruitment
Predicted outcome: otherwise facilitate heterologous protein recruitment
Falsification: Intervention fails to otherwise facilitate heterologous protein recruitment
pendingconf 45%
If hypothesis is true, intervention require a multi-faceted experimental approach combining in vitro biochemical assays, cell culture models, and in vivo studies
Predicted outcome: require a multi-faceted experimental approach combining in vitro biochemical assays, cell culture models, and in vivo studies
Falsification: Intervention fails to require a multi-faceted experimental approach combining in vitro biochemical assays, cell culture models, and in vivo studies
pendingconf 45%
If hypothesis is true, intervention provide broad-spectrum protection against multiple neurodegenerative diseases simultaneously
Predicted outcome: provide broad-spectrum protection against multiple neurodegenerative diseases simultaneously
Falsification: Intervention fails to provide broad-spectrum protection against multiple neurodegenerative diseases simultaneously
pendingconf 45%
If hypothesis is true, intervention address the fundamental mechanism underlying protein aggregation and cross-seeding
Predicted outcome: address the fundamental mechanism underlying protein aggregation and cross-seeding
Falsification: Intervention fails to address the fundamental mechanism underlying protein aggregation and cross-seeding
View on SciDEX ↗