Bifunctional PROTACs that simultaneously bind HSP70's substrate-binding domain and recruit CHIP ubiquitin ligase specifically to tau complexes, creating synthetic ternary complexes that channel tau toward proteasomal degradation while preserving HSP70's normal folding functions.
Auto-built from this analysis's top knowledge-graph edges.
graph TD
HSPA1A["HSPA1A"] -->|protein interactio| STUB1["STUB1"]
MAPT["MAPT"] -->|regulates| HSPA1A_1["HSPA1A"]
Bifunctional_PROTACs["Bifunctional PROTACs"] -->|targets| HSPA1A_2["HSPA1A"]
HSPA1A_3["HSPA1A"] -->|regulates| tau_protein["tau protein"]
HSPA1A_4["HSPA1A"] -->|regulates| proteasomal_degradation_p["proteasomal degradation pathway"]
style HSPA1A fill:#ce93d8,stroke:#333,color:#000
style STUB1 fill:#ce93d8,stroke:#333,color:#000
style MAPT fill:#ce93d8,stroke:#333,color:#000
style HSPA1A_1 fill:#ce93d8,stroke:#333,color:#000
style Bifunctional_PROTACs fill:#4fc3f7,stroke:#333,color:#000
style HSPA1A_2 fill:#4fc3f7,stroke:#333,color:#000
style HSPA1A_3 fill:#4fc3f7,stroke:#333,color:#000
style tau_protein fill:#4fc3f7,stroke:#333,color:#000
style HSPA1A_4 fill:#4fc3f7,stroke:#333,color:#000
style proteasomal_degradation_p fill:#81c784,stroke:#333,color:#000No linked papers recorded for this hypothesis yet.
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.
No DepMap CRISPR Chronos data found for HSPA1A.
Run python3 scripts/backfill_hypothesis_depmap.py to populate.
| Prediction | Predicted | Observed | Status | Conf |
|---|---|---|---|---|
| IF we orally administer the lead bifunctional PROTAC (≥10 mg/kg, BID) to PS19 mice (expressing P301S human tau) for 8 weeks, THEN hippocampal tau pathology (AT8-positive insoluble aggregates) will be | ≥50% reduction in Sarkozy-insoluble AT8 signal by IHC (stereology, two independent raters); Morris water maze hidden platform latency improved by ≥20% vs. vehic | — no observation — | pending | 0.35 |
| IF we synthesize bifunctional PROTACs that simultaneously engage HSP70's substrate-binding domain (SBD) and recruit CHIP ubiquitin ligase specifically to tau complexes (HSPA1A-CIP4X interface), THEN s | ≥40% reduction in Sarkozy-soluble tau (12-16 kDa fragment) as measured by quantitative immunoblot with HT7/Tau5 antibody pair; tau ubiquitination (K48-linked) w | — no observation — | pending | 0.45 |