🧪
hypothesis

Kinase Inhibitor-C1q Structural Convergence for Bifunctional Drug Design

Hypothesis

Kinase Inhibitor-C1q Structural Convergence for Bifunctional Drug Design

Kinase Inhibitor-C1q Structural Convergence for Bifunctional Drug Design starts from the claim that modulating C1QA/C1QB/C1QC, ALK, SYK within the disease context of neuroinflammation can redirect a disease-relevant process.
🧬 C1QA/C1QB/C1QC, ALK, SYK🩺 neuroinflammation🎯 Composite 46%💱 $0.54▼7.0%proposed
🧠 Neurodegeneration
EvidencePending (0%)📖 7 cit🗣 1 debates 4 support 3 oppose
✓ All Quality Gates Passed
Mechanistic 0.25 (15%) Evidence 0.30 (15%) Novelty 0.85 (12%) Feasibility 0.30 (12%) Impact 0.55 (12%) Druggability 0.25 (10%) Safety 0.70 (8%) Competition 0.40 (6%) Data Avail. 0.35 (5%) Reproducible 0.45 (5%) KG Connect 0.73 (8%) 0.458 composite
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Composite46%

🧪 Overview

Mechanistic Overview


Kinase Inhibitor-C1q Structural Convergence for Bifunctional Drug Design starts from the claim that modulating C1QA/C1QB/C1QC, ALK, SYK within the disease context of neuroinflammation can redirect a disease-relevant process. The original description reads: "## Mechanistic Overview Kinase Inhibitor-C1q Structural Convergence for Bifunctional Drug Design starts from the claim that modulating C1QA/C1QB/C1QC, ALK, SYK within the disease context of neuroinflammation can redirect a disease-relevant process. The original description reads: "## Mechanistic Overview Kinase Inhibitor-C1q Structural Convergence for Bifunctional Drug Design starts from the claim that Structural Convergence Between Kinase Inhibitor Pharmacophores and Complement C1q Recognition Surfaces Reveals a Druggable Nexus for Neuroinflammatory Disease. Alectinib binds both ALK and C1q suggesting structural convergence between kinase hinge-binding regions and C1q complement recognition surfaces. Framed more explicitly, the hypothesis centers C1QA/C1QB/C1QC, ALK, SYK within the broader disease setting of neuroinflammation.

...

🧬 Mechanism

🧬 Curated Mechanism Pathway

Curated pathway from expert analysis

flowchart TD
    A["Kinase Inhibitor<br/>Scaffold"]
    B["C1QA/C1QB/C1QC<br/>Binding Interface"]
    C["ALK / SYK<br/>Kinase Domain"]
    D["Bifunctional<br/>Drug Design"]
    E["Complement + Kinase<br/>Dual Inhibition"]
    F["Neuroinflammatory<br/>Resolution"]
    A --> B
    A --> C
    B --> D
    C --> D
    D --> E
    E --> F
    style A fill:#1b5e20,stroke:#a5d6a7,color:#a5d6a7
    style F fill:#1b5e20,stroke:#a5d6a7,color:#a5d6a7

⚖️ Evidence

⚖️ Evidence Matrix4 supports3 contradicts
Supports
ALK extracellular domain contains glycine-rich binding pocket with aromatic residue interactions
PMID:34819665
Supports
C1q globular head has compact hydrophobic interface for versatile ligand recognition
PMID:12960167
Supports
Alectinib binds C1q with high affinity despite kinase-selective design
PMID:41114949
Supports
ALK and C1q both regulate neural development and immune functions
PMID:34819673
Contradicts
ALK is a receptor tyrosine kinase with intracellular kinase domain while C1q is extracellular - different cellular compartments, no evolutionary relationship
PMID:34819665
Contradicts
Alectinib's ALK binding involves specific hydrogen bonds with hinge region residues (M1192, L1196) entirely incompatible with C1q surface
PMID:34819665
Contradicts
No comparative structural analysis provided supporting pharmacophoric convergence claim
PMID:34819665
📖 Linked Papers

No linked papers recorded for this hypothesis yet.

🏥 Translation

🧬 3D Protein Structure — C1QA

🧬 PDB 1PK6 Click to expand

Experimental structure from RCSB PDB | Powered by Mol*

🧠 GTEx v10 Brain ExpressionJSON

Median TPM across 13 brain regions for C1QA/C1QB/C1QC, ALK, SYK from GTEx v10.

Spinal cord cervical c-174.7 Substantia nigra38.2median 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 C1QA →

No DepMap CRISPR Chronos data found for C1QA.

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
▲ 0.3%
Volatility
Medium
0.0476
Events (7d)
2
Price History
▼7.0%

💾 Resource Usage

LLM Tokens
33,738
$0.1012
Total Cost
$0.1012

🔮 Predictions

🔎 Predictions vs Observations2 predictions · 0 with recorded observations
PredictionPredictedObservedStatusConf
IF SYK inhibitor fostamatinib is compared to C1QA/C1QB/C1QC siRNA knockdown in human iPSC-derived microglia over 72 hours THEN both conditions will reduce complement-mediated synaptic pruning by ≥50% ≥50% reduction in C1q-mediated complement deposition on synaptic markers (PSD95, synaptophysin) measured by confocal microscopy and Western blot, with comparabl— no observation —pending0.30
IF alectinib is administered to C1QA/C1QB/C1QC-deficient mouse microglia at 50 mg/kg/day for 14 days THEN IL-6 and TNF-α secretion will be reduced by ≥40% compared to vehicle controls, demonstrating t≥40% reduction in IL-6 and TNF-α release from activated microglia in C1q-deficient vs. wild-type mice, with preserved efficacy in knockout mice indicating ALK-i— no observation —pending0.25
🔮 Falsifiable Predictions (2)
pendingconf 30%
IF SYK inhibitor fostamatinib is compared to C1QA/C1QB/C1QC siRNA knockdown in human iPSC-derived microglia over 72 hours THEN both conditions will reduce complement-mediated synaptic pruning by ≥50% vs. scrambled controls, confirming convergent targeting of SYK-C1q axis for neuroinflammatory diseas
Predicted outcome: ≥50% reduction in C1q-mediated complement deposition on synaptic markers (PSD95, synaptophysin) measured by confocal microscopy and Western blot, with
Falsification: Fostamatinib fails to reduce complement deposition (change <20%) while C1q siRNA is effective, indicating SYK does not functionally interact with the C1q structural nexus; alternatively, C1q knockdown
pendingconf 25%
IF alectinib is administered to C1QA/C1QB/C1QC-deficient mouse microglia at 50 mg/kg/day for 14 days THEN IL-6 and TNF-α secretion will be reduced by ≥40% compared to vehicle controls, demonstrating that anti-inflammatory effects are mediated through C1q structural convergence rather than solely thr
Predicted outcome: ≥40% reduction in IL-6 and TNF-α release from activated microglia in C1q-deficient vs. wild-type mice, with preserved efficacy in knockout mice indica
Falsification: Alectinib shows equivalent anti-inflammatory potency in both C1q-deficient and wild-type microglia, indicating the primary mechanism is ALK kinase inhibition and not C1q structural convergence; any re

📖 References (4)

  1. Structural basis for ligand reception by anaplastic lymphoma kinase.
    Nature (2022)
    PubMed↗DOI↗
  2. The crystal structure of the globular head of complement protein C1q provides a basis for its versatile recognition properties.
    The Journal of biological chemistry (2004)
    PubMed↗DOI↗
  3. Complement C1q-Targeted Microglial Membrane Camouflaged Nanolipid Carriers for Synaptic Protection in Alzheimer's Disease: A Bioinspired Alectinib Delivery Strategy.
    Ding YN et al.. Nano letters (2026)
    PubMed↗DOI↗
  4. Mechanism for the activation of the anaplastic lymphoma kinase receptor.
    Nature (2022)
    PubMed↗DOI↗
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