β-2-Microglobulin (B2M) is a secreted protein with 1 Ig-like C1-type (immunoglobulin-like) domain which belongs to the beta-2-microglobulin family. B2M component of major histocompatibility complex (MHC) class I molecules; involved in the presentation of peptide antigens to the immune system. Polymers of beta 2-microglobulin can be found in tissues from patients on long-term hemodialysis. B2M is a protein found on the surface of many cells and plentiful on the surface of white blood cells. Serum B2M concentration is increased in renal diseases; various malignant diseases and some inflammatory and autoimmune disorders. B2M may adopt the fibrillar configuration of amyloid in certain pathologic states. The capacity to assemble into amyloid fibrils is concentration dependent. B2M has been shown as a marker for monitoring inflammatory disease activity and it appears likely to have a destructive role in amyloidosis-related arthritis. B2M might be involved in the OA (osteoarthritis) pathogenesis. Defects in B2M are the cause of hypercatabolic hypoproteinemia. Affected individuals show marked reduction in serum concentrations of immunoglobulin and albumin; probably due to rapid degradation. B2M could be a potential therapeutic target in ovarian cancer.
Product Name:
Beta-2-Microglobulin/B2M Recombinant Protein (RPES3404)
Product Code:
RPES3404
Size:
10µg
Species:
Human
Expressed Host:
E.coli
Synonyms:
Beta-2-Microglobulin, B2M, ?2-Microglobulin
Accession:
P61769
Sequence:
Ile21-Met 119
Fusion tag:
N-6His
Endotoxin:
<1.0 EU per µg as determined by the LAL method.
Protein Construction:
Recombinant Human beta-2-Microglobulin is produced by our E.coli expression system and the target gene encoding Ile21-Met119 is expressed with a 6His tag at the N-terminus.
Purity:
> 95 % as determined by reducing SDS-PAGE.
Mol Mass:
14.0 kDa
AP Mol Mass:
13 kDa
Formulation:
Lyophilized from a 0.2 µm filtered solution of 20mM PB;150mM NaCl;pH7.4.
Shipping:
This product is provided as lyophilized powder which is shipped with ice packs.
Stability and Storage:
Lyophilized proteins are stable for up to 12 months when stored at -20 to -80°C. Reconstituted protein solution can be stored at 4-8°C for 2-7 days. Aliquots of reconstituted samples are stable at < -20°C for 3 months.
