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10 sources retrieved · Most recent: April 2026 · Index updated 14 days ago
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EPN2
epsin 2
Chromosome 17 · 17p11.2
NCBI Gene: 22905Ensembl: ENSG00000072134.17HGNC: HGNC:18639UniProt: O95208
65PubMed Papers
20Diseases
0Drugs
0Pathogenic Variants
DATA QUALITY
✓ Experimental GO Evidence✓ Swiss-Prot Reviewed
protein bindingcadherin bindingnegative regulation of vascular endothelial growth factor receptor signaling pathwaypositive regulation of Notch signaling pathwayschizophreniasmoking initiationmathematical abilitybladder transitional cell carcinoma
✦AI Summary

EPN2 (epsin 2) is a clathrin-binding adaptor protein that functions as a ubiquitin-dependent endocytic regulator with critical roles in both cellular trafficking and disease pathogenesis. Structurally, EPN2 contains a ubiquitin-interacting motif domain that enables binding to ubiquitinated cargo proteins, facilitating their internalization via clathrin-coated vesicles 1. Beyond canonical endocytosis, EPN2 functions as a negative regulator of angiogenesis; miR-1224-mediated suppression of EPN2 enhances tube formation in endothelial cells by derepressing VEGF signaling and activating Notch signaling 2. In atherosclerosis pathogenesis, myeloid-specific EPN2 promotes disease progression by mediating ubiquitin-dependent internalization and downregulation of LRP-1 (LDLR-related protein 1), an efferocytosis receptor with antiatherosclerotic properties 1. This mechanism suppresses anti-inflammatory macrophage function and foam cell clearance, thereby amplifying lesional inflammation. Clinically, EPN2 emerges as a candidate therapeutic target in multiple conditions. It is identified as a hub gene in perioperative neurocognitive disorders pathogenesis, with potential involvement in insulin-responsive neuroprotection 3. Additionally, EPN2 expression associates with cortical structural damage and cognitive decline in subcortical ischemic vascular disease patients 4. EPN2 also contributes to hepatocellular carcinoma progression through indirect mechanisms involving angiogenesis regulation 5. Finally, EPN2 participates in endosomal STAT3 signaling required for IL-6-mediated transcriptional activation 6.

Sources cited
1
EPN2 mediates ubiquitin-dependent internalization and surface downregulation of LRP-1 in macrophages, promoting atherosclerosis through suppression of efferocytosis and anti-inflammatory phenotype
PMID: 30595089
2
EPN2 functions as an anti-angiogenic factor; miR-1224 targets EPN2 to promote endothelial tube formation by enhancing VEGF signaling and repressing Notch signaling
PMID: 28717225
3
EPN2 is identified as a key hub gene in perioperative neurocognitive disorders pathogenesis with potential involvement in insulin-responsive therapeutic mechanisms
PMID: 40513938
4
EPN2 is associated with cortical structural abnormalities and cognitive decline in subcortical ischemic vascular disease patients
PMID: 39909351
5
EPN2 is induced and acts as an anti-angiogenic factor in hepatocellular carcinoma progression
PMID: 31562977
6
EPN2 participates in endosomal STAT3 signaling and is required for productive IL-6-mediated STAT3 transcriptional activation
PMID: 16407171
Disease Associationsⓘ20
schizophreniaOpen Targets
0.21Weak
smoking initiationOpen Targets
0.17Weak
mathematical abilityOpen Targets
0.11Weak
bladder transitional cell carcinomaOpen Targets
0.01Suggestive
cancerOpen Targets
0.01Suggestive
multiple system atrophyOpen Targets
0.01Suggestive
neoplasmOpen Targets
0.01Suggestive
idiopathic pulmonary fibrosisOpen Targets
0.01Suggestive
infectionOpen Targets
0.01Suggestive
lung adenocarcinomaOpen Targets
0.01Suggestive
rosaceaOpen Targets
0.01Suggestive
cutaneous lupus erythematosusOpen Targets
0.01Suggestive
Alzheimer diseaseOpen Targets
0.00Suggestive
urinary bladder carcinomaOpen Targets
0.00Suggestive
adenocarcinomaOpen Targets
0.00Suggestive
colon adenomaOpen Targets
0.00Suggestive
colorectal adenocarcinomaOpen Targets
0.00Suggestive
glioblastomaOpen Targets
0.00Suggestive
prostate cancerOpen Targets
0.00Suggestive
in situ carcinomaOpen Targets
0.00Suggestive
Pathogenic Variants
No pathogenic variants reported on ClinVar for this gene.
View on ClinVar ↗
Related Genes
EGFRProtein interaction100%UBCProtein interaction100%UBQLN2Protein interaction99%UBQLN1Protein interaction98%SNAP91Protein interaction98%AP2M1Protein interaction96%
Tissue Expression6 tissues
Brain
100%
Heart
86%
Ovary
52%
Lung
34%
Bone Marrow
29%
Liver
20%
Gene Interaction Network
Click a node to explore
EPN2EGFRUBCUBQLN2UBQLN1SNAP91AP2M1
PROTEIN STRUCTURE
Preparing viewer…
AlphaFoldAI-predicted · UniProt O95208
View on AlphaFold ↗
Constraintⓘ
LOEUFⓘ
0.80LoF Tolerant
pLIⓘ
0.00Tolerant
Observed/Expected LoF0.59 [0.43–0.80]
RankingsWhere EPN2 stands among ~20K protein-coding genes
  • #7,165of 20,598
    Most Researched65
  • #6,704of 17,882
    Most Constrained (LOEUF)0.80
Genes detectedEPN2
Sources retrieved10 papers
Response time—
📄 Sources
10▼
1
Myeloid-Specific Deletion of Epsins 1 and 2 Reduces Atherosclerosis by Preventing LRP-1 Downregulation.
PMID: 30595089
Circ Res · 2019
1.00
2
Mendelian randomization analysis with the GEO database: Exploring the molecular mechanism underlying insulin therapy for perioperative neurocognitive disorders.
PMID: 40513938
Eur J Pharmacol · 2025
0.90
3
A mammalian mirtron miR-1224 promotes tube-formation of human primary endothelial cells by targeting anti-angiogenic factor epsin2.
PMID: 28717225
Sci Rep · 2017
0.80
4
Association of cortical macrostructural and microstructural changes with cognitive performance and gene expression in subcortical ischemic vascular disease patients with cognitive impairment.
PMID: 39909351
Brain Res Bull · 2025
0.70
5
LINC00473 promotes hepatocellular carcinoma progression via acting as a ceRNA for microRNA-195 and increasing HMGA2 expression.
PMID: 31562977
Biomed Pharmacother · 2019
0.60