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B71-H52A4-100ug B71-H52A4-1mg

Human B7-1 / CD80 Protein, Mouse IgG2a Fc Tag, low endotoxin (MALS verified)

ACROBiosystems

DESCRIPTION

Human B7-1, Mouse IgG2a Fc Tag (B71-H52A4) is expressed from human 293 cells (HEK293). It contains AA Val 35 - Asn 242 (Accession # P33681-1).

DETAILS

  • Tag: C-mFc(mIgG2a)
  • Host: HEK293
  • Size: 100ug
  • Buffer: Tris with Glycine, Arginine and NaCl, pH7.5
  • Format: Powder
  • Purity: 95%
  • Storage: -20℃
  • Category: Immune Checkpoint Proteins
  • Molecule: B7-1
  • Accession: NP 005182.1
  • Conjugate: Unconjugated
  • Stability: ● -20°C to -70°C for 12 months in lyophilized state; ● -70°C for 3 months under sterile conditions after reconstitution. For long term storage, the product should be stored at lyophilized state at -20°C or lower.
  • Background: 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.
  • Exp Region: Val 35 - Asn 242
  • Swiss-prot: P33681-1
  • Characteristics: This protein carries a mouse IgG2a Fc tag at the C-terminus. The protein has a calculated MW of 50.9 kDa. The protein migrates as 65-85 kDa when calibrated against Star Ribbon Pre-stained Protein Marker under reducing (R) condition (SDS-PAGE) due to glycosylation.
  • Endotoxin Level: 0.1 EU per μg
  • Molecular Weight: 50.9 kDa
  • Shipping Condition: RT
  • Species Reactivity: Human
  • Extra Shippinghandling Fee: Please see 'Shipping-and-Payments' sheet. Website: https://www.acrobiosystems.com/A48-Shipping-and-Payments.html