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25 sources retrieved · Most recent: April 2026 · Index updated 15 days ago
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HAVCR1
hepatitis A virus cellular receptor 1
Chromosome 5 · 5q33.3
NCBI Gene: 26762Ensembl: ENSG00000113249.14HGNC: HGNC:17866UniProt: B4DPB1
254PubMed Papers
20Diseases
0Drugs
0Pathogenic Variants
FUNCTIONAL ROLE
Receptor
RESEARCH IMPACT
Trending
DATA QUALITY
✓ Experimental GO Evidence✓ Swiss-Prot Reviewed
apoptotic cell clearancemotile ciliumvirus receptor activityphosphatidylserine bindingdengue diseasemetabolic diseaseCOVID-19familial hyperlipidemia
✦AI Summary

HAVCR1 (hepatitis A virus cellular receptor 1), also known as KIM-1, serves multiple functions in cellular physiology and disease pathogenesis. Its primary function involves viral receptor activity, facilitating entry of various viruses including Zika virus through direct binding interactions 12. HAVCR1 acts as a primary receptor for ZIKV entry in placental trophoblasts, with its immunoglobulin variable-like domain binding to viral envelope proteins and virion-associated phosphatidylserine 2. The receptor cooperates with AP2S1 for viral internalization through clathrin-mediated endocytosis 2. In kidney disease, HAVCR1 mediates fatty acid uptake by proximal tubular cells, promoting diabetic kidney disease progression through enhanced tubular injury, DNA damage, and fibrosis 3. Additionally, HAVCR1+ proximal tubular cells acquire an inflammatory phenotype in injured kidneys, upregulating chemokines and pro-fibrotic proteins while localizing to fibrotic niches 4. This inflammatory phenotype involves loss of HNF4α and activation of NF-κB and AP-1 transcription factors 4. HAVCR1 shows clinical significance as a biomarker, with upregulated expression correlating with poor prognosis in multiple cancers including esophageal carcinoma, lung adenocarcinoma, and stomach adenocarcinoma 5. Gene haplotype variants also influence susceptibility to different hepatitis C virus genotypes 6.

Sources cited
1
HAVCR1 serves as a viral receptor, with K63-linked polyubiquitin chains directly interacting with TIM1/HAVCR1 to enhance Zika virus entry
PMID: 32641828
2
HAVCR1 serves as primary receptor for ZIKV entry in placental trophoblasts, binding viral envelope proteins through its immunoglobulin variable-like domain
PMID: 40156834
3
HAVCR1/KIM-1 mediates proximal tubular uptake of palmitic acid-bound albumin, promoting diabetic kidney disease progression
PMID: 33951465
4
HAVCR1+ proximal tubular cells acquire inflammatory phenotype in kidney disease, involving NF-κB and AP-1 activation
PMID: 40399382
5
HAVCR1 upregulation correlates with poor prognosis in esophageal carcinoma, lung adenocarcinoma, and stomach adenocarcinoma
PMID: 37056808
6
HAVCR1 gene haplotypes influence susceptibility to different hepatitis C virus genotypes
PMID: 22190394
Disease Associationsⓘ20
dengue diseaseOpen Targets
0.55Moderate
metabolic diseaseOpen Targets
0.49Moderate
COVID-19Open Targets
0.48Moderate
familial hyperlipidemiaOpen Targets
0.33Weak
alcohol drinkingOpen Targets
0.29Weak
self-injurious ideationOpen Targets
0.17Weak
acute kidney injuryOpen Targets
0.12Weak
neoplasmOpen Targets
0.11Weak
type 1 diabetes mellitusOpen Targets
0.11Weak
breast cancerOpen Targets
0.11Weak
hepatocellular carcinomaOpen Targets
0.10Weak
chronic kidney diseaseOpen Targets
0.10Weak
lung adenocarcinomaOpen Targets
0.10Weak
infectionOpen Targets
0.10Suggestive
hypothyroidismOpen Targets
0.09Suggestive
SepsisOpen Targets
0.09Suggestive
preeclampsiaOpen Targets
0.09Suggestive
cancerOpen Targets
0.09Suggestive
gliomaOpen Targets
0.08Suggestive
non-small cell lung carcinomaOpen Targets
0.08Suggestive
Pathogenic Variants
No pathogenic variants reported on ClinVar for this gene.
View on ClinVar ↗
Related Genes
CST3Protein interaction87%FABP1Protein interaction87%SPP1Protein interaction81%ALBProtein interaction78%LCN2Protein interaction77%IGFBP7Protein interaction72%
Tissue Expression6 tissues
Bone Marrow
100%
Lung
63%
Liver
33%
Ovary
33%
Brain
6%
Heart
0%
Gene Interaction Network
Click a node to explore
HAVCR1CST3FABP1SPP1ALBLCN2IGFBP7
PROTEIN STRUCTURE
Preparing viewer…
PDB5DZO · 1.30 Å · X-ray
View on RCSB ↗
Constraintⓘ
LOEUFⓘ
1.94LoF Tolerant
pLIⓘ
0.00Tolerant
Observed/Expected LoF1.57 [0.94–1.94]
RankingsWhere HAVCR1 stands among ~20K protein-coding genes
  • #1,513of 20,598
    Most Researched254 · top 10%
  • #17,583of 17,882
    Most Constrained (LOEUF)1.94
Genes detectedHAVCR1
Sources retrieved25 papers
Response time—
📄 Sources
25▼
1
KIM-1 mediates fatty acid uptake by renal tubular cells to promote progressive diabetic kidney disease.
PMID: 33951465
Cell Metab · 2021
1.00
2
Hepatorenal syndrome.
PMID: 30213943
Nat Rev Dis Primers · 2018
0.90
3
Envelope protein ubiquitination drives entry and pathogenesis of Zika virus.
PMID: 32641828
Nature · 2020
0.80
4
Multiomic analysis of human kidney disease identifies a tractable inflammatory and pro-fibrotic tubular cell phenotype.
PMID: 40399382
Nat Commun · 2025
0.70
5
Controlling nephron precursor differentiation to generate proximal-biased kidney organoids with emerging maturity.
PMID: 40885711
Nat Commun · 2025
0.64