B7-1/CD80 Antibody (RM80) [CoraFluor™ 1]

• Reactivity: Mu
• Applications: WB, Flow, IHC, B/N, Func
• Clone: RM80
• Clonality: Monoclonal
• Host: Rat
• Conjugate: CoraFluor 1

B7-1/CD80 Antibody (RM80) [CoraFluor™ 1] Summary

• Description: CoraFluor(TM) 1 is a high performance terbium-based TR-FRET (Time-Resolved Fluorescence Resonance Energy Transfer) or TRF (Time-Resolved Fluorescence) donor for high throughput assay development. CoraFluor(IM) 1 absorbs UV light at approximately 340 nm, and emits at approximately 490 nm, 545 nm, 585 nm and 620 nm. It is compatible with common acceptor dyes that absorb at the emission wavelengths of CoraFluor(TM) 1. CoraFluor(TM) 1 can be used for the development of robust and scalable TR-FRET binding assays such as target engagement, ternary complex, protein-protein interaction and protein quantification assays.
• Additional Information: Recombinant Monoclonal Antibody
• Immunogen: This antibody was raised by immunising Sprague Dawley rats with a mouse B cell line, BCL1 and fusing immune splenocytes with P3U1 myeloma cells.
• Specificity: This antibody is specific for murine B7-1/CD80, a ~55 kDa member of the Ig superfamily. B7-1/CD80 is expressed by macrophages, dendritic cells, activated B cells, and activated T cells. B7-1/CD80 has high affinity for binding to two T cell surface antigens, CD28 and CD152 (CTLA-4). The interaction of CD28 and CD152 with B7-1/CD80 is crucial in T-B cell communication leading to the activation of T and B cells, respectively.
• Isotype: IgG2a Kappa
• Clonality: Monoclonal
• Host: Rat
• Gene: CD80
• Purity: Protein A purified

Applications/Dilutions

• Dilutions:
  • Block/Neutralize
  • Flow Cytometry
  • Functional Assay
  • Immunohistochemistry
  • Western Blot
• Application Notes: Optimal dilution of this antibody should be experimentally determined.

Packaging, Storage & Formulations

• Storage: Store at 4C in the dark. Do not freeze.
• Buffer: PBS
• Preservative: No Preservative
• Purity: Protein A purified

Notes

CoraFluor (TM) is a trademark of Bio-Techne Corp. Sold for research purposes only under agreement from Massachusetts General Hospital. US patent 2022/0025254

Alternate Names for B7-1/CD80 Antibody (RM80) [CoraFluor™ 1]

• 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

Background

The B-lymphocyte activation antigen B7-1 (CD80) provides regulatory signals for T lymphocytes as a consequence of binding to the CD28 and CTLA4 ligands of T cells. After engagement of T-cell receptor with antigen in association with major histocompatibility complex class II, a second signal mediated through the binding of B7 to CD28 greatly upregulates the production of multiple lymphokines (1). The relatively small CTLA-4/B7-1 binding interface exhibits an unusually high degree of shape complementarity. CTLA-4 forms homodimers through a newly defined interface of highly conserved residues. This zipper-like oligomerization provides the structural basis for forming unusually stable signalling complexes at the T-cell surface, underscoring the importance of potent inhibitory signalling in human immune responses (2).

Limitations

This product is for research use only and is not approved for use in humans or in clinical diagnosis. Primary Antibodies are guaranteed for 1 year from date of receipt.

Bioinformatics

• Gene Symbol: CD80