catalog number :
MBS590050
products type :
ELISA Kit
products full name :
Beta2-Microglobulin
products short name :
Beta2-Microglobulin
other names :
beta-2-microglobulin; Beta-2-microglobulin; beta-2-microglobulin; beta chain of MHC class I molecules; beta-2-microglobin; beta-2-microglobulin
other gene names :
B2M; B2M
uniprot entry name :
B2MG_HUMAN
specificity :
Cross-reaction with the following human serum components was not found.
other info1 :
Intended Uses: This Human Beta2-Microglobulin ELISA Kit is to be used for in vitro quantitative determination of Beta2-Microglobulin (B2MG) concentrations in human serum, other biological samples, and cell culture supernatant. The kit is intended for RESEARCH USE ONLY and is not for use in diagnostic or therapeutic procedures.
other info2 :
Sensitivity: The minimal detectable dose of this B2MG assay was calculated by adding two standard deviations to the mean optical density value of 16 zero standard replicates and determining the corresponding concentration from the standard curve. The minimal detectable dose for this human B2MG assay generated by this method is 0.2?g/mL.
products categories :
ELISA Kits for Human Inflammatory and Autoimmune Conditions
products description :
Principle of the assay: This B2MG enzyme linked immunosorbent assay (ELISA) kit uses a technique called quantitative sandwich immunoassay. The microtiter plate provided in this kit has been pre-coated with a monoclonal antibody specific for B2MG. Standards or samples are added to the microtiter plate wells and B2MG, if present, will bind to the antibody pre-coated on the wells. A preparation of horseradish peroxidase (HRP)-conjugated B2MG antibody is added to each well. The conjugated antibody will bind to the B2MG immobilized on the plate after incubation. All unbound components will be removed by subsequent washing procedure. Next, 3, 3', 5, 5' tetramethyl-benzidine(TMB), a substrate for HRP is added to each well. The colorimetric reaction is proportional to the B2MG content in each well. The reaction is terminated by the addition of a sulphuric acid solution and the colour change is measured spectrophotometrically at the wavelength of 450nm +/- 2nm. In order to quantify the amount of B2MG present in the sample, this Human B2MG ELISA Kit includes a set of calibration standards (6 standards). The calibration standards should be assayed at the same time as the samples to allow the operator to produce a standard curve of Optical Density (O.D.) versus B2MG concentration (?g/mL). The concentration of B2MG in the samples is then determined by comparing the O.D. of the samples to the standard curve. Background: Beta 2 microglobulin (B2MG) is initially discovered as a small serum protein of 12,000 Dalton. The small size allows B2MG to pass through the glomerular membrane, but it is normally completely reabsorbed in the proximal tubules. B2MG normally presents in minute amount, but increases its expressions, or adapts to the fibrillary configuration in certain pathological states. B2MG is found to be a subunit of class I major histocompatibility complex (MHC I) that is expressed on all nucleated cell excluding red blood cells. B2MG non-covalently links with the a3 domain of human leukocyte antigen (HLA) to form MHC I. Inside cytoplasm, MHC I binds to intracellular degraded foreign peptides, or self-peptides in some conditions, through the a1 and a2 variable domains of HLA. Subsequently, MHC I is anchored to the cell surface through the a3 domain of HLA. By way of this procedure, MHC I presents the engulfed foreign peptides to (CD8+) cytotoxic T-cell, thus, plays an important role in cell-mediated immunity. When binding with HFE protein, B2MG was found to increase iron uptake. B2MG is also associated with MHC I - like molecules such as CD1 and Qa. This immunoassay is a tool for investigation of the function and regulation of the protein.
ncbi acc num :
AAA51811.1
ncbi mol weight :
13,715 Da
ncbi pathways :
Adaptive Immune System Pathway 366160!!Amyloids Pathway 366238!!Antigen Presentation: Folding, Assembly And Peptide Loading Of Class I MHC Pathway 366163!!Antigen Processing And Presentation Pathway 83074!!Antigen Processing And Presentation Pathway 485!!Antigen Processing-Cross Presentation Pathway 477122!!Class I MHC Mediated Antigen Processing Presentation Pathway 366161!!Cytokine Signaling In Immune System Pathway 366171!!DAP12 Interactions Pathway 685549!!DAP12 Signaling Pathway 685550
ncbi summary :
This gene encodes a serum protein found in association with the major histocompatibility complex (MHC) class I heavy chain on the surface of nearly all nucleated cells. The protein has a predominantly beta-pleated sheet structure that can form amyloid fibrils in some pathological conditions. The encoded antimicrobial protein displays antibacterial activity in amniotic fluid. A mutation in this gene has been shown to result in hypercatabolic hypoproteinemia.[provided by RefSeq, Aug 2014]