Send to:

Choose Destination

ITGA5 integrin subunit alpha 5 [ Homo sapiens (human) ]

Gene ID: 3678, updated on 23-Nov-2021


Official Symbol
ITGA5provided by HGNC
Official Full Name
integrin subunit alpha 5provided by HGNC
Primary source
See related
Ensembl:ENSG00000161638 MIM:135620
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 product of this gene belongs to the integrin alpha chain family. Integrins are heterodimeric integral membrane proteins composed of an alpha subunit and a beta subunit that function in cell surface adhesion and signaling. The encoded preproprotein is proteolytically processed to generate light and heavy chains that comprise the alpha 5 subunit. This subunit associates with the beta 1 subunit to form a fibronectin receptor. This integrin may promote tumor invasion, and higher expression of this gene may be correlated with shorter survival time in lung cancer patients. Note that the integrin alpha 5 and integrin alpha V subunits are encoded by distinct genes. [provided by RefSeq, Oct 2015]
Broad expression in appendix (RPKM 85.6), urinary bladder (RPKM 54.1) and 19 other tissues See more
Try the new Gene table
Try the new Transcript table

Genomic context

See ITGA5 in Genome Data Viewer
Exon count:
Annotation release Status Assembly Chr Location
109.20211119 current GRCh38.p13 (GCF_000001405.39) 12 NC_000012.12 (54395261..54419266, complement)
105.20201022 previous assembly GRCh37.p13 (GCF_000001405.25) 12 NC_000012.11 (54789045..54813050, complement)

Chromosome 12 - NC_000012.12Genomic Context describing neighboring genes Neighboring gene uncharacterized LOC102724050 Neighboring gene G protein-coupled receptor 84 Neighboring gene zinc finger protein 385A Neighboring gene gametocyte specific factor 1 Neighboring gene NCK associated protein 1 like

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?

HIV-1 interactions

Protein interactions

Protein Gene Interaction Pubs
Envelope surface glycoprotein gp120 env Alpha 5 integrin antibody 17E6 and alpha 5/beta 6 integrins inhibitor EMD 409849 inhibit HIV-1 infection of primary macrophages at an early stage of the virus cycle, suggesting the interaction of HIV-1 gp120 with alpha 5/beta 6 integrins PubMed
env SLIT2 inhibits HIV-1 gp120-induced lymphatic hyperpermeability by blocking the interaction between Robo4 and integrin alpha5beta1 in human lymphatic endothelial cells PubMed
Tat tat HIV-1 Tat-induced inhibition of IFN-gamma release is regulated by the interaction of Tat-RGD domain with alpha5beta1 and alpha5beta3 integrins in CD8+ T cells PubMed
tat HIV-1 Tat induces angiogenesis and cooperates in the development of AIDS-associated Kaposi sarcoma as a result of interactions with integrins alpha-5-beta-1 and alpha-v-beta 3 PubMed
tat The arginine-glycine-aspartic acid (RGD) sequence present at the carboxy-terminal of HIV-1 Tat mediates vascular cell and monocyte migration and invasion by binding to the alpha-5-beta-1 and alpha-v-beta-3 integrins PubMed
tat Activation of primary T cells by HIV-1 Tat involves integrin receptors and monoclonal antibodies to integrin alpha 5 inhibit Tat-induced upregulation of CD25 PubMed
tat IFN-gamma interacts with HIV-1 Tat to induce endothelial cells to proliferate and invade the extracellular matrix by upregulating the receptors for Tat (integrins alpha-5-beta-1 and alpha-v-beta-3), suggesting Tat and IFN-gamma play major roles in AIDS-KS PubMed
tat HIV-1 Tat upregulates VLA-5 (integrin alpha 5) cell surface receptor levels in thymic epithelial cells PubMed
Vpr vpr HIV-1 Vpr-expressing Jurkat T cell clones showed upregulated expression of integrin alpha 5, suggesting a role of Vpr in modulating the cell adhesion process PubMed

Go to the HIV-1, Human Interaction Database

Pathways from PubChem


Products Interactant Other Gene Complex Source Pubs Description

General gene information



Gene Ontology Provided by GOA

Function Evidence Code Pubs
enables metal ion binding IEA
Inferred from Electronic Annotation
more info
enables platelet-derived growth factor receptor binding TAS
Traceable Author Statement
more info
enables protein binding IPI
Inferred from Physical Interaction
more info
enables vascular endothelial growth factor receptor 2 binding TAS
Traceable Author Statement
more info
enables virus receptor activity IEA
Inferred from Electronic Annotation
more info

General protein information

Preferred Names
integrin alpha-5
CD49 antigen-like family member E
ITGA5/SLC9B1 fusion
fibronectin receptor subunit alpha
fibronectin receptor, alpha polypeptide
fibronectin receptor, alpha subunit
integrin alpha-F
integrin, alpha 5 (fibronectin receptor, alpha polypeptide)
very late activation protein 5, alpha subunit

NCBI Reference Sequences (RefSeq)

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_002205.5NP_002196.4  integrin alpha-5 precursor

    Status: REVIEWED

    Source sequence(s)
    AK312414, BC008786, BX647780
    Consensus CDS
    ENSP00000293379.4, ENST00000293379.9
    Conserved Domains (2) summary
    Int_alpha; Integrin alpha (beta-propellor repeats)
    Integrin_alpha2; Integrin alpha

RefSeqs of Annotated Genomes: Homo sapiens Updated Annotation Release 109.20211119

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

Reference GRCh38.p13 Primary Assembly


  1. NC_000012.12 Reference GRCh38.p13 Primary Assembly

    54395261..54419266 complement
    GenBank, FASTA, Sequence Viewer (Graphics)

mRNA and Protein(s)

  1. XM_024448970.1XP_024304738.1  integrin alpha-5 isoform X1

    Conserved Domains (1) summary
    Integrin_alpha2; Integrin alpha
Support Center