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IL3 interleukin 3 [ Homo sapiens (human) ]

Gene ID: 3562, updated on 11-Jul-2021


Official Symbol
IL3provided by HGNC
Official Full Name
interleukin 3provided by HGNC
Primary source
See related
Ensembl:ENSG00000164399 MIM:147740
Gene type
protein coding
RefSeq status
Homo sapiens
Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia; Eutheria; Euarchontoglires; Primates; Haplorrhini; Catarrhini; Hominidae; Homo
Also known as
The protein encoded by this gene is a potent growth promoting cytokine. This cytokine is capable of supporting the proliferation of a broad range of hematopoietic cell types. It is involved in a variety of cell activities such as cell growth, differentiation and apoptosis. This cytokine has been shown to also possess neurotrophic activity, and it may be associated with neurologic disorders. [provided by RefSeq, Jul 2008]
Low expression observed in reference dataset See more
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Genomic context

See IL3 in Genome Data Viewer
Exon count:
Annotation release Status Assembly Chr Location
109.20210514 current GRCh38.p13 (GCF_000001405.39) 5 NC_000005.10 (132060655..132063204)
105.20201022 previous assembly GRCh37.p13 (GCF_000001405.25) 5 NC_000005.9 (131396348..131398897)

Chromosome 5 - NC_000005.10Genomic Context describing neighboring genes Neighboring gene meiotic kinetochore factor Neighboring gene acyl-CoA synthetase long chain family member 6 Neighboring gene ACSL6 antisense RNA 1 Neighboring gene uncharacterized LOC105379174 Neighboring gene enhancer-blocking elements downstream of IL3 Neighboring gene colony stimulating factor 2

Genomic regions, transcripts, and products


  • Project title: HPA RNA-seq normal tissues
  • Description: RNA-seq was performed of tissue samples from 95 human individuals representing 27 different tissues in order to determine tissue-specificity of all protein-coding genes
  • BioProject: PRJEB4337
  • Publication: PMID 24309898
  • Analysis date: Wed Apr 4 07:08:55 2018


GeneRIFs: Gene References Into Functions

What's a GeneRIF?


Associated conditions

Description Tests
A genome-wide scan of Ashkenazi Jewish Crohn's disease suggests novel susceptibility loci.
GeneReviews: Not available
Genetics of rheumatoid arthritis contributes to biology and drug discovery.
GeneReviews: Not available
Genome-wide meta-analysis increases to 71 the number of confirmed Crohn's disease susceptibility loci.
GeneReviews: Not available
Host-microbe interactions have shaped the genetic architecture of inflammatory bowel disease.
GeneReviews: Not available

HIV-1 interactions

Protein interactions

Protein Gene Interaction Pubs
Envelope surface glycoprotein gp120 env HIV-1 gp120 modulates expression of the cytokines IL1beta, IL3, IL6, IL10, IL13, IL15, IFNbeta2A, IFNgamma, IFNomega, TNFalpha, VEGF, VEGF B, and LIF in PBMCs and MDMs PubMed
Envelope surface glycoprotein gp160, precursor env The aberrant activation of AP-1 by HIV-1 gp160 in CD4+ T cells is hypothesized to upregulate cytokines containing AP-1 sites (e.g. IL-3 and colony stimulating factor) and lead to T cell unresponsiveness by inhibiting interleukin-2 secretion PubMed
Tat tat HIV-1 Tat specifically associates with IL-3 promoter to upregulate IL-3 expression in T cells PubMed
tat HIV-1 Tat upregulates IL-3 expression in vincristine-treated Kaposi's sarcoma cells, an effect involved in the activation of AKT kinase and that contributes to the anti-apoptotic effect of Tat PubMed

Go to the HIV-1, Human Interaction Database

Pathways from PubChem


Products Interactant Other Gene Complex Source Pubs Description

General gene information



Clone Names

  • MGC79398, MGC79399

Gene Ontology Provided by GOA

Function Evidence Code Pubs
enables cytokine activity IEA
Inferred from Electronic Annotation
more info
enables growth factor activity IEA
Inferred from Electronic Annotation
more info
enables interleukin-3 receptor binding TAS
Traceable Author Statement
more info
Component Evidence Code Pubs
located_in extracellular region TAS
Traceable Author Statement
more info
located_in extracellular space ISS
Inferred from Sequence or Structural Similarity
more info

General protein information

Preferred Names
P-cell stimulating factor
colony-stimulating factor, multiple
hematopoietic growth factor
mast-cell growth factor
multilineage-colony-stimulating factor
multipotential colony-stimulating factor

NCBI Reference Sequences (RefSeq)

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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_000588.4NP_000579.2  interleukin-3 precursor

    See identical proteins and their annotated locations for NP_000579.2

    Status: REVIEWED

    Source sequence(s)
    Consensus CDS
    ENSP00000296870.2, ENST00000296870.3
    Conserved Domains (1) summary
    IL3; Interleukin-3

RefSeqs of Annotated Genomes: Homo sapiens Updated Annotation Release 109.20210514

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

Reference GRCh38.p13 Primary Assembly


  1. NC_000005.10 Reference GRCh38.p13 Primary Assembly

    GenBank, FASTA, Sequence Viewer (Graphics)
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