Integrin alpha-1 also CD49a is an integrin alpha subunit encoded in humans by the gene ITGA1. It makes up half of the α1β1 integrin duplex. Though CD49a can bind a number of ligands including collagen IV, collagen I, and others.[5]
CD49a has been implicated as a marker of tissue resident memory T cells, where it may be coexpressed with other markers CD103 and CD69.[6] It has been shown to affect the motility of T cells.[7]
^"Human PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
^"Mouse PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
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Belkin VM, Belkin AM, Dol'nikova AE, et al. (1992). "[Isolation and characteristics of ligand specificity of VLA-1 integrin from human smooth muscles]". Biokhimiia. 56 (12): 2198–206. PMID1807406.
Bank I, Roth D, Book M, et al. (1991). "Expression and functions of very late antigen 1 in inflammatory joint diseases". J. Clin. Immunol. 11 (1): 29–38. doi:10.1007/BF00918792. PMID1827128. S2CID6198792.
Tabibzadeh S (1990). "Evidence of T-cell activation and potential cytokine action in human endometrium". J. Clin. Endocrinol. Metab. 71 (3): 645–9. doi:10.1210/jcem-71-3-645. PMID2144294.
Kono Y, Yang S, Letarte M, Roberts EA (1996). "Establishment of a human hepatocyte line derived from primary culture in a collagen gel sandwich culture system". Exp. Cell Res. 221 (2): 478–85. doi:10.1006/excr.1995.1399. PMID7493648.
Eglinton BA, Roberton DM, Cummins AG (1995). "Phenotype of T cells, their soluble receptor levels, and cytokine profile of human breast milk". Immunol. Cell Biol. 72 (4): 306–13. doi:10.1038/icb.1994.46. PMID7806264. S2CID25016970.
Pfaff M, Aumailley M, Specks U, et al. (1993). "Integrin and Arg-Gly-Asp dependence of cell adhesion to the native and unfolded triple helix of collagen type VI". Exp. Cell Res. 206 (1): 167–76. doi:10.1006/excr.1993.1134. PMID8387021.