gene

CR2

Entity Detail — Knowledge Graph Node

Understanding Entity Pages

This page aggregates everything SciDEX knows about CR2: its mechanistic relationships (Knowledge Graph edges), hypotheses targeting it, analyses mentioning it, and supporting scientific papers. The interactive graph below shows its immediate neighbors. All content is AI-synthesized from peer-reviewed literature.

61Connections
10Hypotheses
1Analyses
47Outgoing
14Incoming
0Experiments
1Debates

Summary

Comprehensive page on CR2 (Complement Receptor Type 2, CD21), a receptor for C3d fragments expressed on B cells and follicular dendritic cells, implicated in Alzheimer's disease, multiple sclerosis, and systemic lupus erythematosus.

View on Wiki →

No AI portrait yet

🧬 Gene Info
Gene SymbolCR2
Full NameComplement Receptor Type 2 (CD21)
AliasesComplement Receptor Type 2, CD21
Chromosome1q32
Protein TypeReceptor
Functionis a membrane glycoprotein that serves as a primary receptor for fragments of complement component C3, particularly C3d, C3dg, and iC3b.
Primary Expressionsome tissues
Amino Acids1458 aa
Exons25
UniProt IDP08578
NCBI Gene ID1380
Ensembl IDENSG00000117322
OMIM120650
GeneCardsCR2
Human Protein AtlasCR2
Associated DiseasesALS, Alzheimer, Alzheimer's disease, Dementia, Ms, neurodegeneration
InteractionsAQP4, AQUAPORIN-4, ASTROCYTE, ASTROCYTES, C3, COMPLEMENT
KG Connections61 knowledge graph edges
DatabasesGeneCardsHPASTRING
🔮 Predicted Structure: CR2 — AlphaFold P08578 Click to expand

AI-predicted structure from AlphaFold | Powered by Mol*

Wiki Pages (4)

Knowledge base pages for this entity

Canonical Page

CR2 (Complement Receptor Type 2)

gene · 1421 words

CCR2 and CCR5 Antagonists for Neurodegeneration

therapeutic · 844 words

DHCR24 Gene

gene · 666 words

DHCR24 Protein

protein · 625 words

Pathway Diagram

graph TD
    CR2["CR2"]
    Autoimmune{"Autoimmune"}
    CR2 -->|"inhibits"| Autoimmune
    Als{"Als"}
    CR2 -->|"inhibits"| Als
    CR2 -->|"activates"| Als
    CR2 -->|"activates"| Autoimmune
    Alzheimer{"Alzheimer"}
    CR2 -->|"associated with"| Alzheimer
    Dementia{"Dementia"}
    CR2 -->|"associated with"| Dementia
    Ms{"Ms"}
    CR2 -->|"associated with"| Ms
    ALS{"ALS"}
    CR2 -->|"inhibits"| ALS
    Complement(["Complement"])
    CR2 -->|"inhibits"| Complement
    AQP4["AQP4"]
    CR2 -->|"inhibits"| AQP4
    Myelination(["Myelination"])
    CR2 -->|"inhibits"| Myelination
    GENETIC_RISK_LOCI["GENETIC RISK LOCI"]
    CR2 -->|"associated with"| GENETIC_RISK_LOCI
    AQP4 -->|"inhibits"| CR2
    AQP4 -->|"activates"| CR2
    COMPLEMENT["COMPLEMENT"]
    COMPLEMENT -->|"inhibits"| CR2
    ASTROCYTES["ASTROCYTES"]
    ASTROCYTES -->|"inhibits"| CR2
    AQUAPORIN_4["AQUAPORIN-4"]
    AQUAPORIN_4 -->|"inhibits"| CR2
    OLIGODENDROCYTE["OLIGODENDROCYTE"]
    OLIGODENDROCYTE -->|"inhibits"| CR2
    AND["AND"]
    AND -->|"inhibits"| CR2
    CYTOKINES["CYTOKINES"]
    CYTOKINES -->|"inhibits"| CR2
    ASTROCYTE["ASTROCYTE"]
    ASTROCYTE -->|"inhibits"| CR2
    style CR2 fill:#1a3a4a,stroke:#4fc3f7,stroke-width:3px,color:#e0e0e0

Outgoing (47)

TargetRelationTypeStr
Alzheimer's Diseasetherapeutic_targetdisease0.85
Alzheimer'S Diseasetherapeutic_targetdisease0.85
Alzheimerassociated_withdisease0.65
Dementiaassociated_withdisease0.65
Msassociated_withdisease0.65

Incoming (14)

SourceRelationTypeStr
AQP4inhibitsgene0.60
C3inhibitsgene0.60
COMPLEMENTinhibitsgene0.60
ASTROCYTESinhibitsgene0.60
AQUAPORIN-4inhibitsgene0.60

Targeting Hypotheses (10)

Hypotheses where this entity is a therapeutic target

HypothesisScoreDiseaseAnalysis
CCL2-CCR2 Driven Macrophage Infiltration Selectively Strips 0.682 ALS CCL2-CCR2 Axis at NMJ: Mechanism of Sele
CCL2-CCR2 myeloid signaling as a selective driver of fast-fa 0.626 neurodegeneration CCL2-CCR2 Axis at NMJ: Mechanism of Sele
Cell-state stratification is required to resolve CCL2-CCR2 A 0.612 neurodegeneration CCL2-CCR2 Axis at NMJ: Mechanism of Sele
Perturbation-first validation should precede therapeutic cla 0.608 neurodegeneration CCL2-CCR2 Axis at NMJ: Mechanism of Sele
CCR2+ Monocyte Depletion as Restoration of CNS Immune Privil 0.501 immunomics Systemic immune profiling in neurodegene
CCR2+ Monocyte Reprogramming via IL-10 Enhancement for CNS I 0.380 immunomics Systemic immune profiling in neurodegene
CRP-Mediated CCR2+ Monocyte Recruitment Drives Microglial IL 0.380 immunomics Systemic immune profiling in neurodegene
CCR2-Mediated Microglial Replacement Drives mTOR-HIF1α Metab 0.380 developmental neurobiology Do perinatal immune challenges create pe
hs-CRP-Driven CCR2+ Monocyte Recruitment Disrupts CNS Immune 0.357 immunomics Systemic immune profiling in neurodegene
CCR2-Mediated Microglial Replacement Drives mTOR-HIF1α Metab 0.351 developmental neurobiology Do perinatal immune challenges create pe

Mentioning Analyses (1)

Scientific analyses that reference this entity

CCL2-CCR2 Axis at NMJ: Mechanism of Selective Motor Neuron Vulnerability in ALS

neurodegeneration | 2026-04-27 | 4 hypotheses Top: 0.682

Experiments (0)

Experimental studies targeting or related to this entity

ExperimentTypeDiseaseScoreFeasibilityModelStatusEst. Cost
No experiments found

Related Papers (3)

Scientific publications cited in analyses involving this entity

Title & PMIDAuthorsJournalYearCitations
mTOR Signaling Pathway Regulates the Release of Proinflammatory Molecule CCL5 Im [PMID:35422816] Unknown Front Immunol 2022 0
Monocytic Infiltrates Contribute to Autistic-like Behaviors in a Two-Hit Model o [PMID:33127853] Unknown J Neurosci 2020 0
Focal brain inflammation and autism. [PMID:23570274] Unknown J Neuroinflammation 2013 0

Debates (1)

Multi-agent debates referencing this entity

How does the CCL2-CCR2 chemokine axis at the neuromuscular junction drive select

active · Rounds: 4 · Score: 0.67 · 2026-04-28

Related Research

Hypotheses and analyses mentioning CR2 in their description or question text

CCR2+ Monocyte Reprogramming via IL-10 Enhancement for CNS Immune Privilege Rest

Score: 0.380 · immunomics · 2026-04-26

Rather than depleting CCR2+ monocytes, this hypothesis proposes reprogramming their phenotype through targeted IL-10 pat

CRP-Mediated CCR2+ Monocyte Recruitment Drives Microglial IL-1β Amplification an

Score: 0.380 · immunomics · 2026-04-27

This hypothesis proposes that circulating hs-CRP directly recruits CCR2+ monocytes to the CNS through upregulation of CC

CCR2-Mediated Microglial Replacement Drives mTOR-HIF1α Metabolic Reprogramming i

Score: 0.380 · developmental neurobiology · 2026-04-27

This hypothesis proposes that perinatal immune activation triggers CCR2-dependent recruitment of bone marrow-derived mon

hs-CRP-Driven CCR2+ Monocyte Recruitment Disrupts CNS Immune Privilege via IL-1β

Score: 0.357 · immunomics · 2026-04-26

Circulating hs-CRP directly triggers CCR2+ monocyte recruitment to the CNS by enhancing CCL2 expression in brain endothe

CCR2-Mediated Microglial Replacement Drives mTOR-HIF1α Metabolic Reprogramming i

Score: 0.351 · developmental neurobiology · 2026-04-26

This hypothesis proposes that perinatal immune activation triggers a two-phase pathogenic cascade where CCR2-mediated re