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IL20RA interleukin 20 receptor subunit alpha [ Homo sapiens (human) ]

Gene ID: 53832, updated on 5-Aug-2026
Official Symbol
IL20RAprovided by HGNC
Official Full Name
interleukin 20 receptor subunit alphaprovided by HGNC
Primary source
HGNC:HGNC:6003
See related
Ensembl:ENSG00000016402 MIM:605620; AllianceGenome:HGNC:6003
Gene type
protein coding
RefSeq status
REVIEWED
Organism
Homo sapiens
Lineage
Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia; Eutheria; Euarchontoglires; Primates; Haplorrhini; Catarrhini; Hominidae; Homo
Also known as
CRF2-8; IL-20R1; IL-20RA; IL-20R-alpha
Summary
This gene encodes a member of the type II cytokine receptor family. The encoded protein is a subunit of the receptor for interleukin 20, a cytokine that may be involved in epidermal function. The interleukin 20 receptor is a heterodimeric complex consisting of the encoded protein and interleukin 20 receptor beta. This gene and interleukin 20 receptor beta are highly expressed in skin, and are upregulated in psoriasis. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jul 2013]
Expression
Biased expression in skin (RPKM 13.8), adrenal (RPKM 3.9) and 13 other tissues See more
Orthologs
all
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Try the new Transcripts and proteins table
See IL20RA in Genome Data Viewer
Location:
6q23.3
Exon count:
8
Annotation release Status Assembly Chr Location
RS_2025_08 current GRCh38.p14 (GCF_000001405.40) 6 NC_000006.12 (136999971..137044965, complement)
RS_2025_08 current T2T-CHM13v2.0 (GCF_009914755.1) 6 NC_060930.1 (138187753..138232746, complement)
RS_2024_09 previous assembly GRCh37.p13 (GCF_000001405.25) 6 NC_000006.11 (137321108..137366102, complement)

Chromosome 6 - NC_000006.12Genomic Context describing neighboring genes Neighboring gene NANOG hESC enhancer GRCh37_chr6:137298202-137298732 Neighboring gene ribosomal protein L35a pseudogene 3 Neighboring gene OCT4-NANOG-H3K27ac-H3K4me1 hESC enhancer GRCh37_chr6:137311375-137312331 Neighboring gene NANOG-H3K27ac-H3K4me1 hESC enhancer GRCh37_chr6:137322965-137323508 Neighboring gene neuroblastoma highly expressed DDX5 stabilizing lncRNA 1 Neighboring gene Neanderthal introgressed variant-containing enhancer experimental_90349 Neighboring gene Neanderthal introgressed variant-containing enhancer experimental_90351 Neighboring gene ATAC-STARR-seq lymphoblastoid silent region 17577 Neighboring gene ATAC-STARR-seq lymphoblastoid silent region 17578 Neighboring gene ATAC-STARR-seq lymphoblastoid silent region 17579 Neighboring gene ReSE screen-validated silencer GRCh37_chr6:137382319-137382457 Neighboring gene ATAC-STARR-seq lymphoblastoid active region 25128 Neighboring gene ReSE screen-validated silencer GRCh37_chr6:137410449-137410629 Neighboring gene ATAC-STARR-seq lymphoblastoid active region 25129 Neighboring gene ATAC-STARR-seq lymphoblastoid active region 25130 Neighboring gene ATAC-STARR-seq lymphoblastoid active region 25131 Neighboring gene Neanderthal introgressed variant-containing enhancer experimental_90355 Neighboring gene Neanderthal introgressed variant-containing enhancer experimental_90356 Neighboring gene ATAC-STARR-seq lymphoblastoid active region 25132 Neighboring gene ATAC-STARR-seq lymphoblastoid active region 25133 Neighboring gene Neanderthal introgressed variant-containing enhancer experimental_90359 Neighboring gene Neanderthal introgressed variant-containing enhancer experimental_90362 Neighboring gene interleukin 22 receptor subunit alpha 2 Neighboring gene OCT4-NANOG hESC enhancer GRCh37_chr6:137492881-137493639 Neighboring gene Neanderthal introgressed variant-containing enhancer experimental_90370 Neighboring gene MED14-independent group 3 enhancer GRCh37_chr6:137500946-137502145 Neighboring gene Neanderthal introgressed variant-containing enhancer experimental_90375 Neighboring gene ATAC-STARR-seq lymphoblastoid active region 25135 Neighboring gene ATAC-STARR-seq lymphoblastoid silent region 17580 Neighboring gene H3K27ac hESC enhancer GRCh37_chr6:137540162-137540892 Neighboring gene interferon gamma receptor 1

Go to nucleotide: Graphics FASTA GenBank

  • Project title: Tissue-specific circular RNA induction during human fetal development
  • Description: 35 human fetal samples from 6 tissues (3 - 7 replicates per tissue) collected between 10 and 20 weeks gestational time were sequenced using Illumina TruSeq Stranded Total RNA
  • BioProject: PRJNA270632
  • Publication: PMID 26076956
  • Analysis date: Mon Apr 2 22:54:59 2018

Related articles in PubMed

  1. IL20RA signaling enhances stemness and promotes the formation of an immunosuppressive microenvironment in breast cancer. Gao W, et al. Theranostics, 2021. PMID 33456560, Free PMC Article
  2. Capture Hi-C identifies a novel causal gene, IL20RA, in the pan-autoimmune genetic susceptibility region 6q23. McGovern A, et al. Genome Biol, 2016 Nov 1. PMID 27799070, Free PMC Article
  3. Further association analysis of chr 6q22-24 suggests a role of IL-20RA polymorphisms in psoriasis. Kingo K, et al. J Dermatol Sci, 2010 Jan. PMID 19926456
  4. Interleukin 24 (MDA-7/MOB-5) signals through two heterodimeric receptors, IL-22R1/IL-20R2 and IL-20R1/IL-20R2. Wang M, et al. J Biol Chem, 2002 Mar 1. PMID 11706020
  5. Association analysis of IL20RA and IL20RB genes in psoriasis. Kingo K, et al. Genes Immun, 2008 Jul. PMID 18480827

See all (39) citations in PubMed

GeneRIFs: Gene References Into Functions

What's a GeneRIF?
  1. MicroRNA 452 regulates IL20RA-mediated JAK1/STAT3 pathway in inflammatory colitis and colorectal cancer.
    Title: MicroRNA 452 regulates IL20RA-mediated JAK1/STAT3 pathway in inflammatory colitis and colorectal cancer.
  2. IL20RA signaling enhances stemness and promotes the formation of an immunosuppressive microenvironment in breast cancer.
    Title: IL20RA signaling enhances stemness and promotes the formation of an immunosuppressive microenvironment in breast cancer.
  3. Multiple sequence alignment explains the stabilizing effect of the mutated residues in the IL-24 variants by their presence in the related and more stable cytokines IL-20 and IL-19
    Title: Flexible regions govern promiscuous binding of IL-24 to receptors IL-20R1 and IL-22R1.
  4. IL-20RA gene as a risk factor for multiple autoimmune diseases.
    Title: CRISPR/cas9 mediated knockout of an intergenic variant rs6927172 identified IL-20RA as a new risk gene for multiple autoimmune diseases.
  5. the DNA fragment containing the associated SNPs interacts through chromatin looping not only with TNFAIP3, but also with IL20RA, located 680 kb upstream.
    Title: Capture Hi-C identifies a novel causal gene, IL20RA, in the pan-autoimmune genetic susceptibility region 6q23.
  6. IL20R1 correlated with prognosis of patients with pancreatic cancer, and mediates pancreatic cancer cell growth and migration. It may be a potential biomarker for IL24 molecular-targeted therapy.
    Title: IL24 and its Receptors Regulate Growth and Migration of Pancreatic Cancer Cells and Are Potential Biomarkers for IL24 Molecular Therapy.
  7. crystallographic asymmetric unit contains one IL-20-IL-20R1-IL-20R2 complex, corresponding to a solvent content of approximately 54%
    Title: Purification, crystallization and preliminary X-ray diffraction analysis of the IL-20-IL-20R1-IL-20R2 complex.
  8. Observational study of gene-disease association, gene-environment interaction, and pharmacogenomic / toxicogenomic. (HuGE Navigator)
    Title: Variation at the NFATC2 locus increases the risk of thiazolidinedione-induced edema in the Diabetes REduction Assessment with ramipril and rosiglitazone Medication (DREAM) study.
  9. IL-20RA polymorphisms may have a role in psoriasis
    Title: Further association analysis of chr 6q22-24 suggests a role of IL-20RA polymorphisms in psoriasis.
  10. Complete mda-7/IL-24 receptors (IL-22R1/IL-20R2 and IL-20R1/IL-20R2) are seldom expressed in liver cancer cell lines.
    Title: Expression pattern of mda-7/IL-24 receptors in liver cancer cell lines.
Submit: New GeneRIF Correction See all GeneRIFs (14)

Review eQTL and phenotype association data in this region using PheGenI

EBI GWAS Catalog

Description
Genome-wide trans-ancestry meta-analysis provides insight into the genetic architecture of type 2 diabetes susceptibility.
EBI GWAS Catalog

See variants in ClinVar

See studies and variants in dbVar

See Variation Viewer (GRCh37.p13)

Products Interactant Other Gene Complex Source Pubs Description

Markers

Homology

Clone Names

  • FLJ40993

Gene Ontology Provided by GOA

Function Evidence Code Pubs
enables coreceptor activity IC
Inferred by Curator
more info
 PubMed 
enables cytokine receptor activity IBA
Inferred from Biological aspect of Ancestor
more info
  
enables interleukin-20 binding IBA
Inferred from Biological aspect of Ancestor
more info
  
enables interleukin-20 binding IEA
Inferred from Electronic Annotation
more info
  
enables protein binding IPI
Inferred from Physical Interaction
more info
 PubMed 
Process Evidence Code Pubs
involved_in apoptotic process NAS
Non-traceable Author Statement
more info
 PubMed 
involved_in cell surface receptor signaling pathway via JAK-STAT NAS
Non-traceable Author Statement
more info
 PubMed 
involved_in cellular response to interleukin-4 NAS
Non-traceable Author Statement
more info
 PubMed 
involved_in cytokine-mediated signaling pathway IBA
Inferred from Biological aspect of Ancestor
more info
  
involved_in cytokine-mediated signaling pathway NAS
Non-traceable Author Statement
more info
 PubMed 
involved_in dendritic cell differentiation NAS
Non-traceable Author Statement
more info
 PubMed 
involved_in inflammatory response NAS
Non-traceable Author Statement
more info
 PubMed 
involved_in interleukin-19-mediated signaling pathway IDA
Inferred from Direct Assay
more info
 PubMed 
involved_in negative regulation of type II interferon production NAS
Non-traceable Author Statement
more info
 PubMed 
involved_in osteoclast differentiation NAS
Non-traceable Author Statement
more info
 PubMed 
involved_in positive regulation of interleukin-13 production NAS
Non-traceable Author Statement
more info
 PubMed 
involved_in positive regulation of interleukin-4 production NAS
Non-traceable Author Statement
more info
 PubMed 
involved_in regulation of cell population proliferation NAS
Non-traceable Author Statement
more info
 PubMed 
Component Evidence Code Pubs
part_of interleukin-20 receptor complex IPI
Inferred from Physical Interaction
more info
 PubMed 
located_in membrane IEA
Inferred from Electronic Annotation
more info
  
is_active_in plasma membrane IBA
Inferred from Biological aspect of Ancestor
more info
  
is_active_in plasma membrane IDA
Inferred from Direct Assay
more info
 PubMed 
located_in plasma membrane TAS
Traceable Author Statement
more info
  
part_of signaling receptor complex IPI
Inferred from Physical Interaction
more info
 PubMed 
part_of signaling receptor complex NAS
Non-traceable Author Statement
more info
 PubMed 
Preferred Names
interleukin-20 receptor subunit alpha
Names
class II cytokine receptor ZCYTOR7
cytokine receptor family 2 member 8
interleukin 20 receptor alpha subunit
interleukin 20 receptor, alpha
interleukin-20 receptor I

NEW Try the new Transcript table

RefSeqs maintained independently of Annotated Genomes

These reference sequences exist independently of genome builds. Explain

These reference sequences are curated independently of the genome annotation cycle, so their versions may not match the RefSeq versions in the current genome build. Identify version mismatches by comparing the version of the RefSeq in this section to the one reported in Genomic regions, transcripts, and products above.

mRNA and Protein(s)

  1. NM_001278722.2 → NP_001265651.2  interleukin-20 receptor subunit alpha isoform 2

    Status: REVIEWED

    Description
    Transcript Variant: This variant (2) contains an alternate 5'-most exon, lacks a portion of the 5' coding region, and initiates translation at a downstream start codon, compared to variant 1. The encoded isoform (2) has a shorter N-terminus, compared to isoform 1.
    Source sequence(s)
    AL135902
    Consensus CDS
    CCDS64536.1
    UniProtKB/TrEMBL
    B2RCV2
    Related
    ENSP00000437843.1, ENST00000541547.5
    Conserved Domains (2) summary
    pfam01108
    Location:1 → 74
    Tissue_fac; Tissue factor
    pfam09294
    Location:86 → 190
    Interfer-bind; Interferon-alpha/beta receptor, fibronectin type III

  2. NM_001278723.3 → NP_001265652.2  interleukin-20 receptor subunit alpha isoform 3

    Status: REVIEWED

    Description
    Transcript Variant: This variant (3) differs in its 5' UTR and 5' coding region, compared to variant 1. The encoded isoform (3) has a distinct and shorter N-terminus, compared to isoform 1.
    Source sequence(s)
    AL135902
    Consensus CDS
    CCDS64535.1
    UniProtKB/TrEMBL
    A0ACI8QEB1
    Related
    ENSP00000356722.1, ENST00000367748.4
    Conserved Domains (1) summary
    pfam09294
    Location:25 → 128
    Interfer-bind; Interferon-alpha/beta receptor, fibronectin type III

  3. NM_001278724.4 → NP_001265653.2  interleukin-20 receptor subunit alpha isoform 4

    Status: REVIEWED

    Description
    Transcript Variant: This variant (4) differs in its 5' UTR and 5' coding region, compared to variant 1. The encoded isoform (4) has a distinct and shorter N-terminus, compared to isoform 1.
    Source sequence(s)
    AL135902
    UniProtKB/TrEMBL
    A0ACI8UU10
    Related
    ENSP00000625174.1, ENST00000955115.2
    Conserved Domains (1) summary
    pfam09294
    Location:21 → 106
    Interfer-bind; Interferon-alpha/beta receptor, fibronectin type III

  4. NM_014432.4 → NP_055247.4  interleukin-20 receptor subunit alpha isoform 1 precursor

    Status: REVIEWED

    Description
    Transcript Variant: This variant (1) represents the longest transcript and encodes the longest isoform (1).
    Source sequence(s)
    AL135902
    Consensus CDS
    CCDS5181.1
    UniProtKB/Swiss-Prot
    B4DLR5, F5H675, Q14CW2, Q6UWA9, Q96SH8, Q9UHF4
    UniProtKB/TrEMBL
    B2RCV2
    Related
    ENSP00000314976.5, ENST00000316649.10
    Conserved Domains (2) summary
    pfam01108
    Location:27 → 123
    Tissue_fac; Tissue factor
    pfam09294
    Location:135 → 239
    Interfer-bind; Interferon-alpha/beta receptor, fibronectin type III

RefSeqs of Annotated Genomes: GCF_000001405.40-RS_2025_08

The following sections contain reference sequences that belong to a specific genome build. Explain

Reference GRCh38.p14 Primary Assembly

Genomic

  1. NC_000006.12 Reference GRCh38.p14 Primary Assembly

    Range
    136999971..137044965 complement
    Download
    GenBank, FASTA, Sequence Viewer (Graphics)

mRNA and Protein(s)

  1. XM_017010954.3 → XP_016866443.1  interleukin-20 receptor subunit alpha isoform X1

    UniProtKB/TrEMBL
    A0ACI8PYZ5, B2RCV2
    Related
    ENSP00000548960.1, ENST00000878901.2

Alternate T2T-CHM13v2.0

Genomic

  1. NC_060930.1 Alternate T2T-CHM13v2.0

    Range
    138187753..138232746 complement
    Download
    GenBank, FASTA, Sequence Viewer (Graphics)

mRNA and Protein(s)

  1. XM_054355668.1 → XP_054211643.1  interleukin-20 receptor subunit alpha isoform X1

    UniProtKB/TrEMBL
    B2RCV2
Nucleotide Protein
Heading Accession and Version
Protein Accession Links
GenPept Link UniProtKB Link
Q9UHF4.2 GenPept UniProtKB/Swiss-Prot:Q9UHF4

Gene LinkOut

The following LinkOut resources are supplied by external providers. These providers are responsible for maintaining the links.

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