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BUV496 Mouse Anti-Human C3a Receptor
Product Details
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BD OptiBuild™
C3AR; C3a-R; C3AR1; C3a anaphylatoxin chemotactic receptor; AZ3B
Human (Tested in Development)
Mouse BALB/c IgG2b
Human C3aR 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 with BD Horizon BUV496 under optimal conditions that minimize unconjugated dye and antibody.

Recommended Assay Procedures

For optimal and reproducible results, BD Horizon Brilliant Stain Buffer should be used anytime two or more BD Horizon Brilliant dyes (including BD OptiBuild Brilliant reagents) are used in the same experiment.  Fluorescent dye interactions may cause staining artifacts which may affect data interpretation.  The BD Horizon Brilliant Stain Buffer was designed to minimize these interactions.  More information can be found in the Technical Data Sheet of the BD Horizon Brilliant Stain Buffer (Cat. No. 563794).

Product Notices

  1. This antibody was developed for use in flow cytometry.
  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. Researchers should determine the optimal concentration of this reagent for their individual applications.
  4. An isotype control should be used at the same concentration as the antibody of interest.
  5. 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.
  6. For fluorochrome spectra and suitable instrument settings, please refer to our Multicolor Flow Cytometry web page at
  7. Please refer to for technical protocols.
  8. BD Horizon Brilliant Stain Buffer is covered by one or more of the following US patents: 8,110,673; 8,158,444; 8,575,303; 8,354,239.
  9. BD Horizon Brilliant Ultraviolet 496 is covered by one or more of the following US patents: 8,110,673; 8,158,444; 8,227,187; 8,575,303; 8,354,239.
749863 Rev. 3
Antibody Details
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The hC3aRZ8 monoclonal antibody specifically binds to the human C3a Receptor (C3aR). C3aR is a seven-transmembrane glycoprotein, G-protein-coupled receptor that is the specific receptor for C3a anaphylatoxin. The C3aR consists of 482 amino acids forming a single polypeptide chain that is encoded by the C3AR1 gene located on chromosome 12 (location 12p13.31). C3aR are expressed by eosinophils, basophils, neutrophils, dendritic cells, monocytes, macrophages,  endothelial cells and some T cells. C3a is a bioactive cleavage product released from Complement Component 3 (C3) during complement activation. C3a plays a role in a variety of cellular immune responses as well as being a potent pro-inflammatory agent.  In response to bound C3a, this receptor stimulates cellular responses including chemotaxis, granule enzyme release and superoxide anion production and causes increased vascular permeability. In vivo, C3a production can initiate, contribute to, or exacerbate the inflammatory reactions seen in gram-negative bacterial sepsis, trauma, ARDS, ischemic heart disease, post-dialysis syndrome, and several autoimmune diseases including rheumatoid arthritis, lupus erythematosus, and acute glomerulonephritis.

The antibody was conjugated to BD Horizon™ BUV496 which is part of the BD Horizon Brilliant™ Ultraviolet family of dyes. This dye is a tandem fluorochrome of BD Horizon BUV395 with an Ex Max of 348-nm and an acceptor dye with an Em Max at 496-nm. BD Horizon BUV496 can be excited by the ultraviolet laser (355 nm) and detected with a 515/30 nm filter with a 450LP. Due to the excitation of the acceptor dye by other laser lines, there may be significant spillover into the channel detecting BD Horizon V500 or BV510 (eg, 525/40-nm filter). However, the spillover can be corrected through compensation as with any other dye combination.

749863 Rev. 3
Format Details
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The BD Horizon Brilliant™ Ultraviolet 496 (BUV496) Dye is part of the BD Horizon Brilliant™ Ultraviolet family of dyes. This tandem fluorochrome is comprised of a BUV395 donor with an excitation maximum (Ex Max) of 350-nm and an acceptor dye with an emission maximum (Em Max) at 496-nm. BUV496, driven by BD innovation, is designed to be excited by the ultraviolet laser (355-nm) and detected using an optical filter centered near 500-nm (e.g., 515/30-nm bandpass filter). The acceptor dye can be excited by the Violet (405-nm) laser resulting in cross-laser excitation and fluorescence spillover. Please ensure that your instrument’s configurations (lasers and optical filters) are appropriate for this dye.
Ultraviolet 355 nm
350 nm
496 nm
749863 Rev.3
Citations & References
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Development References (8)

  1. Ames RS, Li Y, Sarau HM. Molecular cloning and characterization of the human anaphylatoxin C3a receptor. J Biol Chem. 1996; 271(34):20231-20234. (Biology). View Reference
  2. Crass T, Raffetseder U, Martin U. Expression cloning of the human C3a anaphylatoxin receptor (C3aR) from differentiated U-937 cells. Eur J Immunol. 1996; 26(8):1944-1950. (Biology). View Reference
  3. Ember JA, Hugli TE. C3a Receptor. In: Oppenheim JJ, Feldmann M, Durum SK. editors in chief, Joost J. Oppenheim, Marc Feldman ; editors, Scott K. Durum .. et al., ed. Cytokine reference : a compendium of cytokines and other mediators of host defense. London: Academic Press; 2001:2173-2181.
  4. Sacks SH. Complement fragments C3a and C5a: The salt and pepper of the immune response. Eur J Immunol. 2010; 40(3):668-670. (Biology). View Reference
  5. Soruri A, Kiafard Z, Dettmer C, Riggert J, Köhl J, Zwirner J. IL-4 down-regulates anaphylatoxin receptors in monocytes and dendritic cells and impairs anaphylatoxin-induced migration in vivo.. J Immunol. 2003; 170(6):3306-14. (Immunogen: Flow cytometry, Functional assay). View Reference
  6. Strainic MG, Liu J, Huang D, et al. Locally produced complement fragments C5a and C3a provide both costimulatory and survival signals to naive CD4+ T cells.. Immunity. 2008; 28(3):425-35. (Biology). View Reference
  7. Werfel T, Kirchhoff K, Wittmann M, et al. Activated human T lymphocytes express a functional C3a receptor. J Immunol. 2000; 165(11):6599-6605. (Biology). View Reference
  8. Zwirner J, Gotze O, Begemann G, Kapp A, Kirchhoff K, Werfel T. Evaluation of C3a receptor expression on human leucocytes by the use of novel monoclonal antibodies. Immunology. 1999; 97(1):166-172. (Biology). View Reference
View All (8) View Less
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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.