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BV421 Rat Anti-Human CD267
BV421 Rat Anti-Human CD267

Multiparameter flow cytometric analysis using BD OptiBuild™ BV421 Rat Anti-Human CD267 (TACI) antibody (Cat. No. 744143) on human peripheral blood lymphocytes. Flow cytometry was performed using a BD LSRFortessa™ Flow Cytometer System.

Multiparameter flow cytometric analysis using BD OptiBuild™ BV421 Rat Anti-Human CD267 (TACI) antibody (Cat. No. 744143) on human peripheral blood lymphocytes. Flow cytometry was performed using a BD LSRFortessa™ Flow Cytometer System.

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BD OptiBuild™
TACI; TNFRSF13B; Tumor necrosis factor receptor 13B; TNFRSF14B2; CVID2
Human (Tested in Development)
Rat IgG2a, κ
Human TACI-transfected RBL cells
Flow cytometry (Qualified)
0.2 mg/ml
VIII 80683
Aqueous buffered solution containing ≤0.09% sodium azide.


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 BV421 under optimal conditions that minimize unconjugated dye and antibody.


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. 563794/566349).


  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 Violet 421 is covered by one or more of the following US patents: 8,158,444; 8,362,193; 8,575,303; 8,354,239.
  10. Pacific Blue™ is a trademark of Molecular Probes, Inc., Eugene, OR.
744143 Rev. 1
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The 1A1-K21-M22 monoclonal antibody specifically binds to CD267 which is also known as TACI (Transmembrane Activator and CAML Interactor). CD267 is a member of the of the Tumor Necrosis Factor Receptor (TNFR) Superfamily and is encoded by the TNFRSF13B gene. This 32 kDa type III transmembrane protein receptor binds to the ligands, BAFF (TNFSF13B/BLyS/CD257) and APRIL (TNFSF13/CD256). Ligand-bound CD267 transduces signals leading to the activation of transcription factors including NFAT, AP1, and NF-kappa-B. CD267 is expressed most notably on maturing subsets of B cells and myeloma cells. In CD267 deficient mice, B cell numbers are increased and mice develop autoimmune disorders suggesting that CD267 plays an important role in the regulation of B cell homeostasis.

The antibody was conjugated to BD Horizon™ BV421 which is part of the BD Horizon Brilliant™ Violet family of dyes. With an Ex Max of 407-nm and Em Max at 421-nm, BD Horizon BV421 can be excited by the violet laser and detected in the standard Pacific Blue™ filter set (eg, 450/50-nm filter). BD Horizon BV421 conjugates are very bright, often exhibiting a 10 fold improvement in brightness compared to Pacific Blue conjugates.

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The BD Horizon Brilliant Violet™ 421 (BV421) Dye is part of the BD Horizon Brilliant Violet™ family of dyes. This polymer-technology based dye has an excitation maximum (Ex Max) of 407-nm and an emission maximum (Em Max) at 423-nm. Driven by BD innovation, BV421 is designed to be excited by the violet laser (405-nm) and detected using an optical filter centered near 420-nm (e.g., a 431/28-nm or 450/50-nm bandpass filter). BV421 is an ideal alternative for V450 as it is approximately ten times brighter with less spillover into the BV510/V500 detector. Please ensure that your instrument’s configurations (lasers and optical filters) are appropriate for this dye.
Violet 405 nm
407 nm
423 nm
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開発者向け参考資料 (3)

  1. Ng LG, Sutherland AP, Newton R, et al. B cell-activating factor belonging to the TNF family (BAFF)-R is the principal BAFF receptor facilitating BAFF costimulation of circulating T and B cells.. J Immunol. 2004; 173(2):807-17. (Immunogen: ELISA, Flow cytometry). 参考文献を見る
  2. O'Connor BP, Raman VS, Erickson LD, et al. BCMA is essential for the survival of long-lived bone marrow plasma cells.. J Exp Med. 2004; 199(1):91-8. (Biology). 参考文献を見る
  3. Seshasayee D, Valdez P, Yan M, Dixit VM, Tumas D, Grewal IS.. Loss of TACI causes fatal lymphoproliferation and autoimmunity, establishing TACI as an inhibitory BLyS receptor. Immunity. 2003; 18(2):279-288. (Biology). 参考文献を見る
744143 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.