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B2M

Tetramer Products Antibody Magnetic Beads AbPlus Recombinant Antibody Products Functional Antibody Products Formats
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.
Protein class

Cancer-related genes, Disease related genes, Human disease related genes, Plasma proteins, Potential drug targets, Transporters

Predicted location

Secreted

Single cell type specificity

Cell type enhanced (monocytes, NK-cells)

Immune cell specificity

Low immune cell specificity

Cell line specificity

Low cell line specificity

Interaction

Heterodimer of an alpha chain and a beta chain. Beta-2-microglobulin is the beta-chain of major histocompatibility complex class I molecules. Polymers of beta 2-microglobulin can be found in tissues from patients on long-term hemodialysis. B2M alone (not in complex with HLA-I) interacts with M.tuberculosis EsxA (ESAT-6) and an EsxA-EsxB (CFP-10) complex; the tripartite complex can be detected in the host endoplasmic reticulum (PubMed:25356553). The B2M-EsxA complex can be detected in patients with pleural tuberculosis and is stable from pH 4.0 to 8.0 and in the presence of 2M NaCl (PubMed:25356553). Forms a heterotrimer with HLA-E and a self- or a foreign peptide (PubMed:9427624). Forms a heterotrimer with HLA-G and a self-peptide (PubMed:17056715). Forms a heterotrimer with HLA-F and a self-peptide (PubMed:10605026). Forms a heterotrimer with MR1 and a metabolite antigen.

More Types Infomation
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