integrin subunit beta 4
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L ITGB4 gene provides instructions for making one part (the β4 subunit) of a protein known as an integrin. Integrins are a group of proteins that regulate the attachment of cells to one another (cell-cell adhesion) and to the surrounding network of proteins and other molecules (cell-matrix adhesion). Integrins also transmit chemical signals that regulate cell growth and the activity of certain genes.
Normal function
L ITGB4 gene provides instructions for making one part (the β4 subunit) of a protein known as an integrin. Integrins are a group of proteins that regulate the attachment of cells to one another (cell-cell adhesion) and to the surrounding network of proteins and other molecules (cell-matrix adhesion). Integrins also transmit chemical signals that regulate cell growth and the activity of certain genes.
The integrin protein made with the β4 subunit is known as α6β4 integrin. This protein is found primarily in epithelial cells, which are cells that line the surfaces and cavities of the body. The α6β4 integrin protein plays a particularly important role in strengthening and stabilizing the skin. It is a component of hemidesmosomes, which are microscopic structures that anchor the outer layer of the skin (the epidermis) to underlying layers. As part of a complex network of proteins in hemidesmosomes, α6β4 integrin helps to hold the layers of skin together.
Conditions referring to this gene or chromosome
Altri nomi
CD104
CD104 antigen
GP150
integrin beta 4
Integrin beta(4)
integrin beta-4 subunit
Integrin beta4
integrin, beta 4
integrin, beta-4
ITB4_HUMAN
Lymphocyte antigen CD104
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Ulteriori letture e riferimenti
- integrin subunit beta 4; MedlinePlus, National Library of Medicine.
- Ashton GH, Sorelli P, Mellerio JE, Keane FM, Eady RA, McGrath JA. Alpha 6 beta 4 integrin abnormalities in junctional epidermolysis bullosa with pyloric atresia. Br J Dermatol. 2001 Feb;144(2):408-14. doi: 10.1046/j.1365-2133.2001.04038.x.
- Dang N, Klingberg S, Rubin AI, Edwards M, Borelli S, Relic J, Marr P, Tran K, Turner A, Smith N, Murrell DF. Differential expression of pyloric atresia in junctional epidermolysis bullosa with ITGB4 mutations suggests that pyloric atresia is due to factors other than the mutations and not predictive of a poor outcome: three novel mutations and a review of the literature. Acta Derm Venereol. 2008;88(5):438-48. doi: 10.2340/00015555-0484.
- Guo W, Pylayeva Y, Pepe A, Yoshioka T, Muller WJ, Inghirami G, Giancotti FG. Beta 4 integrin amplifies ErbB2 signaling to promote mammary tumorigenesis. Cell. 2006 Aug 11;126(3):489-502. doi: 10.1016/j.cell.2006.05.047.
- Lipscomb EA, Mercurio AM. Mobilization and activation of a signaling competent alpha6beta4integrin underlies its contribution to carcinoma progression. Cancer Metastasis Rev. 2005 Sep;24(3):413-23. doi: 10.1007/s10555-005-5133-4.
- Nakano A, Pulkkinen L, Murrell D, Rico J, Lucky AW, Garzon M, Stevens CA, Robertson S, Pfendner E, Uitto J. Epidermolysis bullosa with congenital pyloric atresia: novel mutations in the beta 4 integrin gene (ITGB4) and genotype/phenotype correlations. Pediatr Res. 2001 May;49(5):618-26. doi: 10.1203/00006450-200105000-00003.
- Pulkkinen L, Kim DU, Uitto J. Epidermolysis bullosa with pyloric atresia: novel mutations in the beta4 integrin gene (ITGB4). Am J Pathol. 1998 Jan;152(1):157-66.
- Pulkkinen L, Rouan F, Bruckner-Tuderman L, Wallerstein R, Garzon M, Brown T, Smith L, Carter W, Uitto J. Novel ITGB4 mutations in lethal and nonlethal variants of epidermolysis bullosa with pyloric atresia: missense versus nonsense. Am J Hum Genet. 1998 Nov;63(5):1376-87. doi: 10.1086/302116.
- Yoon SO, Shin S, Lipscomb EA. A novel mechanism for integrin-mediated ras activation in breast carcinoma cells: the alpha6beta4 integrin regulates ErbB2 translation and transactivates epidermal growth factor receptor/ErbB2 signaling. Cancer Res. 2006 Mar 1;66(5):2732-9. doi: 10.1158/0008-5472.CAN-05-2941.
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