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Cynomolgus B2M / Beta-2-microglobulin Protein (His Tag)

B2M

Catalog Number P90152-C08H
Organism Species Cynomolgus
Host Human Cells
Synonyms B2M
Molecular Weight The recombinant heterodimer of Cynomolgus B2M comprises 110 amino acids and has a calculated molecular mass of 13.1 KDa. The apparent molecular mass of cyno B2M heterodimer is approximately 14 KDa respectively in SDS-PAGE.
predicted N Ile 21
SDS-PAGE
Purity > 96 % as determined by SDS-PAGE
Protein Construction A DNA sequence encoding the Cynomolgus B2M (Q6V7J5) (Met 1-Met119) was expressed, fused with a polyhistidine tag at the C-terminus.
Bio-activity
Research Area Cancer |Oncoprotein & suppressor & biomarker |Tumor biomarker |Other in cancer biomarker |Globulin
Formulation Lyophilized from sterile PBS, pH 7.4
1. Normally 5 % - 8 % trehalose, mannitol and 0.01% Tween80 are added as protectants before lyophilization. Specific concentrations are included in the hardcopy of COA.
Background B2M, also known as β2-Microglobulin or CDABP0092, is a component of MHC class I molecules found expression in all nucleated cells (excludes red blood cells). The major function of MHC class I moleculesis is to display fragments of proteins from within the cell to T-cells and cells containing foreign proteins will be attacked. B2M(β2-Microglobulin) is a low molecular weight protein. It was demonstrated that B2M(β2-Microglobulin) was localized in the membranes of nucleated cells and was found to be associated with HL-A antigens.B2M(β2- Microglobulin) is present in free form in various body fluids and as a subunit of histocompatibility antigens on cell surfaces lateral to theα3 chain. Unlikeα3, β2 has no transmembrane region. Directly above β2 lies the α1 chain, which itself is lateral to the α2. In the absence of B2M(β2 microglobulin), very limited amounts of MHC class I (classical and non-classical) molecules can be detected on the surface. In the absence of MHC class I, CD8 T cells, a subset of T cells involved in the development of acquired immunity cannot develop. Low levels of B2M(β2 microglobulin) can indicate non-progression of HIV.
Reference
  • Poulik MD, et al. (1979) Beta 2-Microglobulin: methods and clinical applications. CRC Ctit Rev Clin Lab Sci. 10(3): 225-45.
  • Poulik MD, et al. (1975) Beta2-Microglobulins. Contemp Top Mol Immunol. 4: 157-204.
  • Berggard I. (1976) Beta2-Microglobulins: isolation, properties, and distribution. Fed Proc. 35(5): 1167-70.