MR1/?2-Microglobulin Complex (human, recombinant)

MR1/?2-Microglobulin Complex (human, recombinant)

CAT N°: 30585
Price:

845.00 718.25

MHC class I-related gene protein (MR1) is a non-polymorphic MHC class Ib antigen-presenting cell surface molecule that is required for T cell receptor-mediated activation of mucosal-associated invariant T (MAIT) cells.{60473,60472} MR1 is composed of ?1 and ?2 domains, which form an antigen-binding pocket, and an ?3 domain that interacts with ?2-microglobulin, the light chain component of MHC class I molecules that facilitates complex transport to the cell surface and antigen presentation to cytotoxic T cells.{60472,45065} Upon binding of a microbial antigen, MR1 undergoes a conformational change in the endoplasmic reticulum and translocates to the cell surface with ?2-microglobulin where it induces MAIT cell activation via an interaction with the MAIT cell T cell receptor and activates various immunomodulatory effects, including cytokine release, initiation of adaptive immune responses, and promotion of tissue repair.{45938,60474} The antigen-binding domain of MR1 binds to vitamin B metabolites, including metabolites of vitamin B2, also known as riboflavin, and vitamin B9 (folic acid; Item No. 20515).{45742} MHC class I-associated ?2-microglobulin exhibits equilibrium exchange with circulating soluble ?2-microglobulin and serum levels of ?2-microglobulin are increased in patients with cancer, renal failure, systemic amyloidosis, or various autoimmune diseases, including multiple sclerosis.{45065,45066,45067,45064}

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