ITGA4

Gene Information
  • Official Symbol: ITGA4
  • Official Name: integrin subunit alpha 4
  • Aliases and Previous Symbols: N/A
  • Entrez ID: 3676
  • UniProt: P13612
  • Interactions: BioGRID
  • PubMed articles: Open PubMed
  • OMIM: Open OMIM
Function Summary
  • Entrez Summary: The gene encodes a member of the integrin alpha chain family of proteins. Integrins are heterodimeric integral membrane proteins composed of an alpha chain and a beta chain that function in cell surface adhesion and signaling. The encoded preproprotein is proteolytically processed to generate light and heavy chains that comprise the alpha 4 subunit. This subunit associates with a beta 1 or beta 7 subunit to form an integrin that may play a role in cell motility and migration. This integrin is a therapeutic target for the treatment of multiple sclerosis, Crohn's disease and inflammatory bowel disease. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Oct 2015].
  • UniProt Summary: Integrins alpha-4/beta-1 (VLA-4) and alpha-4/beta-7 are receptors for fibronectin. They recognize one or more domains within the alternatively spliced CS-1 and CS-5 regions of fibronectin. They are also receptors for VCAM1. Integrin alpha- 4/beta-1 recognizes the sequence Q-I-D-S in VCAM1. Integrin alpha- 4/beta-7 is also a receptor for MADCAM1. It recognizes the sequence L-D-T in MADCAM1. On activated endothelial cells integrin VLA-4 triggers homotypic aggregation for most VLA-4-positive leukocyte cell lines. It may also participate in cytolytic T-cell interactions with target cells. ITGA4:ITGB1 binds to fractalkine (CX3CL1) and may act as its coreceptor in CX3CR1-dependent fractalkine signaling (PubMed:23125415). ITGA4:ITGB1 binds to PLA2G2A via a site (site 2) which is distinct from the classical ligand-binding site (site 1) and this induces integrin conformational changes and enhanced ligand binding to site 1 (PubMed:18635536, PubMed:25398877). {ECO:0000269|PubMed:18635536, ECO:0000269|PubMed:19064666, ECO:0000269|PubMed:23125415, ECO:0000269|PubMed:25398877}.

Pfam Domains GO Terms


CRISPR Data

Compound Hit Most Correlated Genes in Chemogenomics Tissues where Essential in the Avana Dataset (DepMap 20Q1)

Essentiality in NALM6
  • Essentiality Rank: 14362
  • Expression level (log2 read counts): 8.08

Expression Distribution

  • Last modified: 2025/12/10 20:19
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