Human Beta-2-microglobulin/B2M, C-His Tag Protein

RMB: 599 特惠 1619 1619

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Catalog# HA210978

Human Beta-2-microglobulin/B2M, C-His Tag Protein

Product Information

Product name

Human Beta-2-microglobulin/B2M, C-His Tag Protein

Catalog No.

HA210978

Predicted molecular mass

13.1 kD

Protein construction description

A DNA sequence encoding the human Beta-2-microglobulin/B2M protein (P61769) (Ile 21-Met119) was expressed with a His tag at the C-terminus.

Accession

P61769

Protein construction

Beta-2-microglobulin/B2M (21-119) His

Source

HEK293

Bio Activity

Testing in progress.

Purity

>95% as determined by SDS-PAGE.

Endotoxin

Less than 1.0 EU per μg by the LAL method.

Formulation

Lyophilized from a 0.2 μm filtered solution of PBS, pH7.4, 5% Trehalose, 5% mannitol.

Species

Human

Background

Component of the class I major histocompatibility complex (MHC). Involved in the presentation of peptide antigens to the immune system. Exogenously applied M.tuberculosis EsxA or EsxA-EsxB (or EsxA expressed in host) binds B2M and decreases its export to the cell surface (total protein levels do not change), probably leading to defects in class I antigen presentation. The disease is caused by variants affecting the gene represented in this entry. Apart from the presence of causative mutations, beta-2-microglobulin may adopt the fibrillar configuration of amyloid when its serum levels are persistently high. High beta(2)-microglobulin serum levels result in amyloidosis in patients on long-term hemodialysis. In contrast to patients with dialysis-related amyloidosis, patients with hereditary amyloidosis have normal circulating concentrations of beta2-microglobulin.

Usage guide

Shipping

In general, recombinant proteins are provided as lyophilized powder which are shipped with blue ice. Bulk packages of recombinant proteins are provided as frozen liquid which are shipped with dry ice.

Storage

Please avoid repeated freeze-thaw cycles. Samples are stable for up to twelve months from date of receipt at -20℃ to -80℃ It is recommended that aliquot the reconstituted solution to minimize freeze-thaw cycles.