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Merck
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Key Documents

SAE0112

Sigma-Aldrich

β2-微球蛋白 来源于人类尿液

≥98% (SDS-PAGE), solution

别名:

β2-Microglobulin from human urine

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About This Item

MDL號碼:
分類程式碼代碼:
12352202
NACRES:
NA.77

生物源

human

化驗

≥98% (SDS-PAGE)

形狀

solution

雜質

Infectious Agents, tested

溶解度

water: soluble

UniProt登錄號

儲存溫度

2-8°C

基因資訊

human ... B2M(567)

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一般說明

Research area: Cancer

β2 microglobulin (β2-M) is a polypeptide that associates with the heavy chain of class I major histocompatibility complex (MHC) antigens on the cell surface. It is a non-glycosylated protein, synthesized by all nucleated cells. Its secondary structure comprises of seven β-strands, arranged into two β-sheets connected by a single disulfide bridge.

應用

β2-Microglobulin from human urine was used to test humoral CSF parameters in the differential diagnosis of hematologic CNS neoplasia. It was also used in the identification of CTL epitopes in hepatitis C virus by a genome-wide computational scanning and a rational design of peptide vaccine.

生化/生理作用

The interaction of β2 microglobulin (β2-M) with major histocompatibility complex (MHC) is dynamic and plays a critical role in the stability of the MHC antigens and their ability to present peptide antigens in CD8+ cells. A transient complex of MHC heavy chain and β2-M is known to be assembled into the TAP molecule (transporter associated with antigen processing) through interactions with a number of chaperones. Binding of processed peptide releases the Class I-β2-M complex to the cell surface. Absence of binding leads to degradation in the proteasome. β2-M serves as a regulator of cell survival, proliferation, migration, invasion, apoptosis, angiogenesis, and metastasis in cancer cells. It is also recognized for promoting the growth and survival of stromal cells, such as mesenchymal stem cells (MSCs), osteoblasts, and osteoclasts, thereby supporting cancer bone metastasis.

準備報告

Prepared by the method of Berggard and Bearn.

儲存類別代碼

12 - Non Combustible Liquids

水污染物質分類(WGK)

WGK 1

閃點(°F)

Not applicable

閃點(°C)

Not applicable


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