Human B7-1/CD80 Fluorescein-conjugated Antibody

Catalog # Availability Size / Price Qty
FAB140F-100
FAB140F-025
Detection of B7-1/CD80 in Human PBMC by Flow Cytometry.
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Product Details
Citations (4)
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Human B7-1/CD80 Fluorescein-conjugated Antibody Summary

Species Reactivity
Human
Specificity
Detects human B7‑1/CD80 in ELISAs. In sandwich immunoassays, no cross-reactivity or interference with recombinant human (rh) B7-2, recombinant mouse (rm) B7-1, rmB7-2, rhB7-H1, rhB7-H2, rhB7-H3 or rmPD-L2 is observed.
Source
Monoclonal Mouse IgG1 Clone # 37711
Purification
Protein A or G purified from hybridoma culture supernatant
Immunogen
S. frugiperda insect ovarian cell line Sf 21-derived recombinant human B7‑1/CD80
Val35-Asn242 (predicted)
Accession # P33681
Formulation
Supplied in a saline solution containing BSA and Sodium Azide.
Label
Fluorescein (Excitation= 488 nm, Emission= 515-545 nm)

Applications

Recommended Concentration
Sample
Flow Cytometry
10 µL/106 cells
See below

Please Note: Optimal dilutions should be determined by each laboratory for each application. General Protocols are available in the Technical Information section on our website.

Scientific Data

Flow Cytometry View Larger

Detection of B7-1/CD80 in Human PBMC by Flow Cytometry. Human PBMC were treated with 1μg/mL LPS overnight then stained with (A) Mouse Anti-Human B7-1/CD80 CFS-conjugated Monoclonal Antibody (Catalog # FAB140F) or (B) Mouse IgG1 Isotype Control (IC002F) and Mouse Anti-Human CD14 PE-conjugated Monoclonal Antibody (FAB3832P). Staining was performed using our Staining Membrane-associated Proteins protocol.

Flow Cytometry Detection of B7‑1/CD80 antibody in Raji Human Cell Line antibody by Flow Cytometry. View Larger

Detection of B7‑1/CD80 in Raji Human Cell Line by Flow Cytometry. Raji human Burkitt's lymphoma cell line was stained with Mouse Anti-Human B7‑1/CD80 Fluorescein‑conjugated Monoclonal Antibody (Catalog # FAB140F, filled histogram) or isotype control antibody (Catalog # IC002F, open histogram). View our protocol for Staining Membrane-associated Proteins.

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Preparation and Storage

Shipping
The product is shipped with polar packs. Upon receipt, store it immediately at the temperature recommended below.
Stability & Storage
Protect from light. Do not freeze.
  • 12 months from date of receipt, 2 to 8 °C as supplied.

Background: B7-1/CD80

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. B7-1 is expressed on activated B cells, activated T cells, and macrophages. B7-2 is constitutively expressed on interdigitating dendritic cells, Langerhans cells, peripheral blood dendritic cells, memory B cells, and germinal center B cells. Additionally, B7-2 is expressed at low levels on monocytes and can be up-regulated through Interferon gamma. B7-1 and B7-2 are both members of the Immunoglobulin superfamily. Human B7-1 is a 288 amino acid (aa) protein containing a 34 aa signal peptide, a 208 aa extracellular domain, a 21 aa transmembrane domain, and a 25 aa cytoplasmic domain. Human B7-1 and B7-2 share 26% aa sequence identity. Human and mouse B7-1 share 44% aa sequence identity. However, it has been observed that both human and mouse B7-1 and B7-2 can bind to either human or mouse CD28 and CTLA-4, suggesting that there are conserved amino acids which form the B7-1/B7-2/CD28/CTLA-4 critical binding sites.

References
  1. Azuma, M. et al. (1993) Nature 366:76.
  2. Freeman, G.J. et al. (1993) Science 262:909.
  3. Freeman, G. et al. (1991) J. Exp. Med. 174:625.
  4. Selvakumar, A. et al. (1993) Immunogenetics 38:292.
  5. Chen, C. et al. (1994) J. Immunol. 152:4929.
  6. Freeman, G.J. et al. (1993) J. Exp. Med. 178:2185.
Entrez Gene IDs
941 (Human); 12519 (Mouse); 25408 (Rat); 102140078 (Cynomolgus Monkey)
Alternate Names
Activation B7-1 antigen; B7; B71; B7-1; BB1; CD28LG1; CD28LGB7-1 antigen); CD80 antigen; CD80 molecule; CD80; costimulatory factor CD80; costimulatory molecule variant IgV-CD80; CTLA-4 counter-receptor B7.1; T-lymphocyte activation antigen CD80

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Citations for Human B7-1/CD80 Fluorescein-conjugated Antibody

R&D Systems personnel manually curate a database that contains references using R&D Systems products. The data collected includes not only links to publications in PubMed, but also provides information about sample types, species, and experimental conditions.

4 Citations: Showing 1 - 4
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  1. Lactobacillus reuteri Surface Mucus Adhesins Upregulate Inflammatory Responses Through Interactions With Innate C-Type Lectin Receptors
    Authors: KP Bene, DW Kavanaugh, C Leclaire, AP Gunning, DA MacKenzie, A Wittmann, ID Young, N Kawasaki, E Rajnavolgy, N Juge
    Front Microbiol, 2017-03-07;8(0):321.
    Species: Human
    Sample Types: Whole Cells
    Applications: Flow Cytometry
  2. Effects of NOD-like receptors in human B lymphocytes and crosstalk between NOD1/NOD2 and Toll-like receptors.
    Authors: Petterson T, Jendholm J, Mansson A, Bjartell A, Riesbeck K, Cardell LO
    J. Leukoc. Biol., 2010-09-15;89(2):177-87.
    Species: Human
    Sample Types: Whole Cells
    Applications: Flow Cytometry
  3. NKG2D-dependent effector function of bronchial epithelium-activated alloreactive T-cells.
    Authors: Kraetzel K, Stoelcker B, Eissner G, Multhoff G, Pfeifer M, Holler E, Schulz C
    Eur. Respir. J., 2008-04-16;32(3):563-70.
    Species: Human
    Sample Types: Whole Cells
    Applications: Flow Cytometry
  4. Decreased expression of tumor necrosis factor family receptors involved in humoral immune responses in preterm neonates.
    Authors: Kaur K, Chowdhury S, Greenspan NS, Schreiber JR
    Blood, 2007-07-18;110(8):2948-54.
    Species: Human
    Sample Types: Whole Cells
    Applications: Flow Cytometry

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