CD80 active protein

Human CellExp CD80, human recombinant

Cat. Num. AAA845337

• Gene Names: CD80; B7; BB1; B7-1; B7.1; LAB7; CD28LG; CD28LG1
• Applications: SDS-Page
• Purity: >=95%
• Synonyms: CD80; Human CellExp CD80; human recombinant; B7; B7-1; B7.1; BB1; CD28LG; CD28LG1; LAB7; CD80 active protein

• Host: HEK293 cells
• Purity/Purification: >=95%
• Form/Format: Lyophilized from 0.22 mum filtered solution in PBS, pH7.4. Generally 5-8% Mannitol or trehalose is added as a protectant before lyophilization.; Appearance: Lyophilized
• Sequence Length: 288

• Applicable Applications for CD80 active protein: SDS-PAGE
• Solubility/Reconstitution Instructions: Centrifuge the vial prior to opening. Reconstitute in sterile PBS, pH 7.4 to a concentration of 50 ug/ml. Do not vortex. This solution can be stored at 2-8 degree C for up to 1 month. For extended storage, it is recommended to store at -20 degree C.
• Endotoxin Level: <1 EU/mug by LAL method
• Biological Activity: 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 ug/mL in the presence of phytohaemagglutinin.
• Results: 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 ug/mL in the presence of phytohaemagglutinin.
• Handling: Centrifuge the vial prior to opening.
• Preparation and Storage: At -20 degree C; Shelf Life: 12 months

Testing Data

Related Product Information for CD80 active protein

Background: B7-1 and B7-2, together with their receptors CD28 and CTLA-4, constitute one of the dominant co-stimulatory pathways that regulate T- and B-cell responses. Although both CTLA-4 and CD28 can bind to the same ligands, CTLA-4 binds to B7-1 and B7-2 with a 20 - 100 fold higher affinity than CD28 and is involved in the down-regulation 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-kappaB-signaling pathway in macrophages. CD80 is thus regarded as promising therapeutic targets for autoimmune diseases and various carcinomas.

Product Categories/Family for CD80 active protein

Proteins and Enzymes; Human cell expressed recombinant proteinsProteins and Enzymes; Cytokines; Growth Factors & Hormones; CDsProteins and Enzymes; Cytokines; Growth Factors & Hormones; Cytokines & Growth Factors (A-Z) Proteins and Enzymes; Proteins and E

NCBI and Uniprot Product Information

• NCBI GI #: 4885123
• NCBI GeneID: 941
• NCBI Accession #: NP_005182.1
• NCBI GenBank Nucleotide #: NM_005191.3
• UniProt Accession #: P33681; Q5DTA9; Q5DTB0
• Molecular Weight: 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.
• NCBI Official Full Name: T-lymphocyte activation antigen CD80
• NCBI Official Synonym Full Names: CD80 molecule
• NCBI Official Symbol: CD80
• NCBI Official Synonym Symbols: B7; BB1; B7-1; B7.1; LAB7; CD28LG; CD28LG1
• NCBI Protein Information: T-lymphocyte activation antigen CD80
• UniProt Protein Name: T-lymphocyte activation antigen CD80
• Protein Family: T-lymphocyte activation antigen
• UniProt Gene Name: CD80
• UniProt Synonym Gene Names: CD28LG; CD28LG1; LAB7; B7
• UniProt Entry Name: CD80_HUMAN

NCBI Description

The protein encoded by this gene is a membrane receptor that is activated by the binding of CD28 or CTLA-4. The activated protein induces T-cell proliferation and cytokine production. This protein can act as a receptor for adenovirus subgroup B and may play a role in lupus neuropathy. [provided by RefSeq, Aug 2011]

Uniprot Description

CD80: Involved in the costimulatory signal essential for T- lymphocyte activation. T-cell proliferation and cytokine production is induced by the binding of CD28 or CTLA-4 to this receptor.

Protein type: Membrane protein, integral; Immunoglobulin superfamily

Chromosomal Location of Human Ortholog: 3q13.3-q21

Cellular Component: cell surface; plasma membrane; integral to membrane; external side of plasma membrane

Molecular Function: protein binding; coreceptor activity

Biological Process: epidermal growth factor receptor signaling pathway; fibroblast growth factor receptor signaling pathway; phosphoinositide-mediated signaling; nerve growth factor receptor signaling pathway; positive regulation of signal transduction; viral reproduction; T cell activation; positive regulation of transcription, DNA-dependent; positive regulation of interleukin-2 biosynthetic process; positive regulation of granulocyte macrophage colony-stimulating factor biosynthetic process; positive regulation of peptidyl-tyrosine phosphorylation; cell-cell signaling; T cell costimulation; innate immune response; positive regulation of alpha-beta T cell proliferation; positive regulation of T-helper 1 cell differentiation