Recombinant Human CD32b / FCGR2B Protein (His & AVI tag)

Mol Mass:

24 kDa

Conjugation:

histidine

AP Mol Mass:

30-35 kDa

Fusion tag:

C-His & AVI

Group:

recombinants

Expressed Host:

HEK293 Cells

Accession:

NP_001002274.1

Sequence:

Ala 46-Ile 224

Source:

Recombinants or rec. proteins

Synonym:

CD32;CD32B;Fc gamma RIIB;FCGR2

Purity:

> 95 % as determined by SDS-PAGE

Formulation:

Lyophilized from sterile PBS, pH 7.4

Endotoxin:

< 1.0 EU per μg of the protein as determined by the LAL method

Activity:

Immobilized human CD32b-AVI-His at 10 μg/ml (100 μl/well) can bind biotinylated Human IgG1, The EC50 of biotinylated Human IgG1 is 0.20-0.48 μg/ml.

Stability and Storage:

Samples are stable for up to twelve months from date of receipt at -70℃.Store it under sterile conditions at -20℃ to -80℃. It is recommended that the protein be aliquoted for optimal storage. Avoid repeated freeze-thaw cycles.

Shipping:

In general, recombinant proteins are provided as lyophilized powder which are shipped at ambient temperature.Bulk packages of recombinant proteins are provided as frozen liquid. They are shipped out with blue ice unless customers require otherwise.

Properties:

Human proteins, cDNA and human recombinants are used in human reactive ELISA kits and to produce anti-human mono and polyclonal antibodies. Modern humans (Homo sapiens, primarily ssp. Homo sapiens sapiens). Depending on the epitopes used human ELISA kits can be cross reactive to many other species. Mainly analyzed are human serum, plasma, urine, saliva, human cell culture supernatants and biological samples.

Background:

MD-1 and MD-2 are secretory glycoproteins that exist on the cell surface in complexes with transmembrane proteins. MD-1 is anchored by radioprotective 105 (RP105) which is a molecule containing leucine-rich repeats and is expressed on B cells, dentritic cells and macrophages, while MD-2 is associated with TLR4. MD-1 is required for efficient RP105 cell surface expression and function. It is indicated that the RP105/MD1 complex, in conjunction with TLR4, mediates the innate immune response to LPS in B cells, and also plays a role in protecting against apoptosis, B-cell proliferation, etc. Mouse MD-1 cDNA encodes a 162 amino acid precursor protein with a putative 19 aa signal peptide and two potential N-linked glycosylation sites. It shares 40% and 66% amino acid sequence identity with chicken and human MD-1 respectively. MD-1 is mainly expressed in spleen, and also detectable in liver, brain, thymus, and kidney.