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R718 Rat Anti-Mouse CD88
Product Details
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BD OptiBuild™
Cd88; C5ar1; C5a-R; C5aR; C5r1; C5a Ligand; C5a anaphylatoxin receptor
Mouse (Tested in Development)
Rat LOU, also known as Louvain, LOU/C, LOU/M IgG2b, κ
Mouse C5aR Transfected Cell Line
Flow cytometry (Qualified)
0.2 mg/ml
Aqueous buffered solution containing ≤0.09% sodium azide.

Preparation And Storage

Store undiluted at 4°C and protected from prolonged exposure to light. Do not freeze. The monoclonal antibody was purified from tissue culture supernatant or ascites by affinity chromatography. The antibody was conjugated to the dye under optimum conditions that minimize unconjugated dye and antibody.

Recommended Assay Procedures

BD™ CompBeads can be used as surrogates to assess fluorescence spillover (Compensation). When fluorochrome conjugated antibodies are bound to BD CompBeads, they have spectral properties very similar to cells. However, for some fluorochromes there can be small differences in spectral emissions compared to cells, resulting in spillover values that differ when compared to biological controls. It is strongly recommended that when using a reagent for the first time, users compare the spillover on cells and BD CompBead to ensure that BD CompBeads are appropriate for your specific cellular application.

Product Notices

  1. Researchers should determine the optimal concentration of this reagent for their individual applications.
  2. The production process underwent stringent testing and validation to assure that it generates a high-quality conjugate with consistent performance and specific binding activity. However, verification testing has not been performed on all conjugate lots.
  3. An isotype control should be used at the same concentration as the antibody of interest.
  4. Caution: Sodium azide yields highly toxic hydrazoic acid under acidic conditions. Dilute azide compounds in running water before discarding to avoid accumulation of potentially explosive deposits in plumbing.
  5. Alexa Fluor® is a registered trademark of Life Technologies Corporation.
  6. Please refer to to access safety data sheets (SDS).
  7. Please refer to for technical protocols.
  8. This product is provided under an Agreement between BIOTIUM and BD Biosciences. This product, and only in the amount purchased by buyer, may be used solely for buyer’s own internal research, in a manner consistent with the accompanying product literature. No other right to use, sell or otherwise transfer (a) this product, or (b) its components is hereby granted expressly, by implication or by estoppel. This product is for research use only. Diagnostic uses require a separate license from Biotium, Inc. For information on purchasing a license to this product including for purposes other than research, contact Biotium, Inc., 3159 Corporate Place, Hayward, CA 94545, Tel: (510) 265-1027. Fax: (510) 265-1352. Email:
752094 Rev. 1
Antibody Details
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The 20/70 monoclonal antibody specifically binds to CD88, which is also known as, Complement component 5a receptor 1 (C5ar1), C5a anaphylatoxin chemotactic receptor, or C5a receptor (C5aR). CD88 belongs to the rhodopsin family of seven-transmembrane G protein-coupled receptors and mediates its effects by binding to the complement activation product, C5a. CD88 is expressed on leucocytes including, neutrophils, monocytes, macrophages, and eosinophils. CD88 may also be expressed on alveolar epithelial cells, endothelial cells, neural stem cells, oligodendrocytes, and on parenchymal cells of lung, liver, kidney and heart. Binding of the proinflammatory C5a anaphylatoxin to CD88 results in G-protein coupling and intracellular signal transduction that mediates intracellular calcium release, chemotaxis, degranulation, cytokine production, and superoxide anion production. The 20/70 antibody can block binding of C5a to CD88 and thus inhibit its biological functions.

The antibody was conjugated to BD Horizon Red 718, which has been developed exclusively for BD Biosciences as a better alternative to Alexa Fluor® 700. BD Horizon Red 718 can be excited by the red laser (628 – 640 nm) and, with an Em Max around 718 nm, it can be detected using a 730/45 nm filter. Due to similar excitation and emission properties, we do not recommend using R718 in combination with APC-R700 or Alexa Fluor® 700.

752094 Rev. 1
Format Details
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The BD Horizon™ Red 718 (R718) Dye is part of the BD red family of dyes. It is a small organic fluorochrome with an excitation maximum (Ex Max) at 695-nm and an emission maximum (Em Max) at 718-nm. Driven by BD innovation, R718 is designed to be excited by the red laser (627–640-nm) and detected using an optical filter centered near 720-nm (e.g., a 720/40-nm bandpass filter). R718 is a brighter alternative to Alexa Fluor™ 700. R718 is also a bright small molecule alternative to APC-R700 with lower spread into the APC detector. Please ensure that your instrument’s configurations (lasers and optical filters) are appropriate for this dye.
Red 627-640 nm
695 nm
718 nm
752094 Rev.1
Citations & References
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Development References (6)

  1. Godau J, Heller T, Hawlisch H, et al. C5a initiates the inflammatory cascade in immune complex peritonitis.. J Immunol. 2004; 173(5):3437-45. (Clone-specific: Blocking, Flow cytometry, Inhibition, In vivo exacerbation). View Reference
  2. Laudes IJ, Chu JC, Huber-Lang M, et al. Expression and function of C5a receptor in mouse microvascular endothelial cells. J Immunol. 2002; 169(10):5962-5970. (Biology). View Reference
  3. Lee H, Whitfeld PL, Mackay CR. Receptors for complement C5a. The importance of C5aR and the enigmatic role of C5L2. Immunol Cell Biol. 2008; 86(2):153-160. (Biology). View Reference
  4. Nataf S, Levison SW, Barnum SR. Expression of the anaphylatoxin C5a receptor in the oligodendrocyte lineage. Brain Res. 2001; 894(2):321-326. (Biology). View Reference
  5. Riedemann NC, Guo RF, Neff TA, et al. Increased C5a receptor expression in sepsis. J Clin Invest. 2002; 110(1):101-108. (Biology). View Reference
  6. Soruri A, Kim S, Kiafard Z, Zwirner J. Characterization of C5aR expression on murine myeloid and lymphoid cells by the use of a novel monoclonal antibody. Immunol Lett. 2003; 88(1):47-52. (Immunogen: Blocking, Flow cytometry, Functional assay, Inhibition). View Reference
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752094 Rev. 1

Please refer to Support Documents for Quality Certificates

Global - Refer to manufacturer's instructions for use and related User Manuals and Technical data sheets before using this products as described

Comparisons, where applicable, are made against older BD Technology, manual methods or are general performance claims.  Comparisons are not made against non-BD technologies, unless otherwise noted.

For Research Use Only. Not for use in diagnostic or therapeutic procedures.