Integrins are heterodimers composed of alpha and beta subunits, that are noncovalently associated transmembrane glycoprotein receptors. Different combinations of alpha and beta polypeptides form complexes that vary in their ligand-binding specificities. Integrins mediate cell-matrix or cell-cell adhesion, and transduced signals that regulate gene expression and cell growth. This gene encodes the integrin beta 4 subunit, a receptor for the laminins. This subunit tends to associate with alpha 6 subunit and is likely to play a pivotal role in the biology of invasive carcinoma. Mutations in this gene are associated with epidermolysis bullosa with pyloric atresia. Multiple alternatively spliced transcript variants encoding distinct isoforms have been found for this gene.
^Biffo S, Sanvito F, Costa S, Preve L, Pignatelli R, Spinardi L, Marchisio PC (Nov 1997). "Isolation of a novel beta4 integrin-binding protein (p27(BBP)) highly expressed in epithelial cells". The Journal of Biological Chemistry. 272 (48): 30314–21. PMID9374518. doi:10.1074/jbc.272.48.30314.
^Favre B, Fontao L, Koster J, Shafaatian R, Jaunin F, Saurat JH, Sonnenberg A, Borradori L (Aug 2001). "The hemidesmosomal protein bullous pemphigoid antigen 1 and the integrin beta 4 subunit bind to ERBIN. Molecular cloning of multiple alternative splice variants of ERBIN and analysis of their tissue expression". The Journal of Biological Chemistry. 276 (35): 32427–36. PMID11375975. doi:10.1074/jbc.M011005200.
Lipscomb EA, Mercurio AM (Sep 2005). "Mobilization and activation of a signaling competent alpha6beta4integrin underlies its contribution to carcinoma progression". Cancer Metastasis Reviews. 24 (3): 413–23. PMID16258729. doi:10.1007/s10555-005-5133-4.
Hogervorst F, Kuikman I, van Kessel AG, Sonnenberg A (Jul 1991). "Molecular cloning of the human alpha 6 integrin subunit. Alternative splicing of alpha 6 mRNA and chromosomal localization of the alpha 6 and beta 4 genes". European Journal of Biochemistry / FEBS. 199 (2): 425–33. PMID2070796. doi:10.1111/j.1432-1033.1991.tb16140.x.
Vogel BE, Tarone G, Giancotti FG, Gailit J, Ruoslahti E (Apr 1990). "A novel fibronectin receptor with an unexpected subunit composition (alpha v beta 1)". The Journal of Biological Chemistry. 265 (11): 5934–7. PMID2138612.
Hemler ME, Crouse C, Sonnenberg A (Apr 1989). "Association of the VLA alpha 6 subunit with a novel protein. A possible alternative to the common VLA beta 1 subunit on certain cell lines". The Journal of Biological Chemistry. 264 (11): 6529–35. PMID2649503.
Clarke AS, Lotz MM, Mercurio AM (Apr 1994). "A novel structural variant of the human beta 4 integrin cDNA". Cell Adhesion and Communication. 2 (1): 1–6. PMID7982032. doi:10.3109/15419069409014197.
Weeks BS, Desai K, Loewenstein PM, Klotman ME, Klotman PE, Green M, Kleinman HK (Mar 1993). "Identification of a novel cell attachment domain in the HIV-1 Tat protein and its 90-kDa cell surface binding protein". The Journal of Biological Chemistry. 268 (7): 5279–84. PMID8444901.
Iacovacci S, Gagnoux-Palacios L, Zambruno G, Meneguzzi G, D'Alessio M (Jun 1997). "Genomic organization of the human integrin beta4 gene". Mammalian Genome. 8 (6): 448–50. PMID9166594. doi:10.1007/s003359900467.
Pulkkinen L, Kurtz K, Xu Y, Bruckner-Tuderman L, Uitto J (Jun 1997). "Genomic organization of the integrin beta 4 gene (ITGB4): a homozygous splice-site mutation in a patient with junctional epidermolysis bullosa associated with pyloric atresia". Laboratory Investigation. 76 (6): 823–33. PMID9194858.
van Leusden MR, Kuikman I, Sonnenberg A (Jun 1997). "The unique cytoplasmic domain of the human integrin variant beta4E is produced by partial retention of intronic sequences". Biochemical and Biophysical Research Communications. 235 (3): 826–30. PMID9207246. doi:10.1006/bbrc.1997.6892.
von Bredow DC, Nagle RB, Bowden GT, Cress AE (Oct 1997). "Cleavage of beta 4 integrin by matrilysin". Experimental Cell Research. 236 (1): 341–5. PMID9344615. doi:10.1006/excr.1997.3711.
Biffo S, Sanvito F, Costa S, Preve L, Pignatelli R, Spinardi L, Marchisio PC (Nov 1997). "Isolation of a novel beta4 integrin-binding protein (p27(BBP)) highly expressed in epithelial cells". The Journal of Biological Chemistry. 272 (48): 30314–21. PMID9374518. doi:10.1074/jbc.272.48.30314.