Human CellExp™ CD80, human recombinant

CD80

B7-1 and B7-2, together with their receptors CD28 and CTLA­4, constitute one of the dominant co-stimulatory pathways that regulate T­ and B­cell responses. Although both CTLA­4 and CD28 can bind to the same ligands, CTLA­4 binds to B7­1 and B7­2 with a 20 ­ 100 fold higher affinity than CD28 and is involved in the down­regulation of the immune response. B-lymphocyte activation antigen B7-1 (referred to as B7) also known as cluster of Differentiation 80 (CD80), is a member of cell surface immunoglobulin superfamily and is expressed on activated B cells, activated T cells, macrophages and dendritic cells. It is the ligand for two different proteins on the T cell surface: CD28 (for autoregulation and intercellular association) and CTLA-4 (for attenuation of regulation and cellular disassociation). CD80 works in tandem with CD86 to prime T cells. CD80 plays a role in induction of innate immune responses by activating NF-κB-signaling pathway in macrophages. CD80 is thus regarded as promising therapeutic targets for autoimmune diseases and various carcinomas.

N/A

This protein is fused with 6×His tag at the C-terminus, has a calculated MW of 24.7 kDa. The predicted N-terminus is Val 35. DTT-reduced Protein migrates as 45-75 kDa due to different glycosylation.

CD80, B7, B7-1, B7.1, BB1, CD28LG, CD28LG1, LAB7

CD80, B7, B7-1, B7.1, BB1, CD28LG, CD28LG1, LAB7

941

CD80

Human

P33681

Yes

HEK293 cells

≥95%

SDS-PAGE, N/A

N/A

Measured by its ability to induce IL2 secretion by Jurkat human acute T cell leukemia cells. The ED50 for this effect is typically 0.01 - 0.1 µg/mL in the presence of phytohaemagglutinin.

Measured by its ability to induce IL2 secretion by Jurkat human acute T cell leukemia cells. The ED50 for this effect is typically 0.01 - 0.1 µg/mL in the presence of phytohaemagglutinin.

N/A

N/A

-20°C

Gel Pack

Lyophilized

Lyophilized from 0.22 μm filtered solution in PBS, pH7.4. Generally 5-8% Mannitol or trehalose is added as a protectant before lyophilization.

Centrifuge the vial prior to opening. Reconstitute in sterile PBS, pH 7.4 to a concentration of 50 µg/ml. Do not vortex. This solution can be stored at 2-8°C for up to 1 month. For extended storage, it is recommended to store at -20°C.

N/A

Centrifuge the vial prior to opening.

For Research Use Only! Not to be used in humans

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.

Recombinants or rec. proteins

recombinants