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BV421 Mouse Anti-Mouse CD22.2
BV421 Mouse Anti-Mouse CD22.2

Multiparameter flow cytometric analysis using BD OptiBuild™ BV421 Mouse Anti-Mouse CD22 antibody (Cat. No. 740023) on live C57BL/6 mouse splenocytes. Flow cytometry was performed using a BD™ LSR II Flow Cytometer System.

Multiparameter flow cytometric analysis using BD OptiBuild™ BV421 Mouse Anti-Mouse CD22 antibody (Cat. No. 740023) on live C57BL/6 mouse splenocytes. Flow cytometry was performed using a BD™ LSR II Flow Cytometer System.

Product Details
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BD OptiBuild™
Lyb8.2; Lyb-8.2; BL-CAM; Siglec-2
Mouse (Tested in Development)
Mouse DBA/1 IgG1, κ
B10.D2 mouse splenocytes
Flow cytometry (Qualified)
0.2 mg/ml
12483
AB_2739795
Aqueous buffered solution containing ≤0.09% sodium azide.
RUO


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 BV421 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 www.bdbiosciences.com/colors.
  7. Please refer to www.bdbiosciences.com/us/s/resources 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.
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Antibody Details
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Cy34.1

The Cy34.1 monoclonal antibody specifically binds to the B-lymphocyte differentiation antigen CD22 on strains having the Lyb-8.2 alloantigen (e.g., A, BALB/c, CBA, C3H/He, C57BL, C57L, C58, SJL, SWR, but not AKR, DBA/1, DBA/2, NZB, PL). CD22 is expressed at high levels on mature peripheral B lymphocytes (follicular  and marginal zone), B-1 cells (CD5+ B cells), and plasma cells.  It is a member of the Ig gene superfamily and associates with the B-cell antigen receptor. Its sialic acid- binding immunoglobulin-like lectin (siglec) extracellular region mediates B-cell adhesion to ligands on endothelial cells in the bone marrow.  Its intracellular  domain is phosphorylated after cross-linking of antigen receptor  or MHC class II antigen.  It is involved in negative regulation of B-cell activation and protection from autoimmunity.  B-cell proliferative responses to LPS or anti-mouse Ig µ chain are augmented in the presence of Cy34.1 mAb.

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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Format Details
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BV421
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.
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BV421
Violet 405 nm
407 nm
423 nm
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Citations & References
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Development References (11)

  1. Bobbitt KR, Justement LB. Regulation of MHC class II signal transduction by the B cell coreceptors CD19 and CD22. J Immunol. 2000; 165(10):5588-5596. (Biology). View Reference
  2. Doody GM, Justement LB, Delibrias CC. A role in B cell activation for CD22 and the protein tyrosine phosphatase SHP. Science. 1995; 269(5221):242-244. (Biology). View Reference
  3. Erickson LD, Tygrett LT, Bhatia SK, Grabstein KH, Waldschmidt TJ. Differential expression of CD22 (Lyb8) on murine B cells. Int Immunol. 1996; 8(7):1121-1129. (Biology). View Reference
  4. Law CL, Sidorenko SP, Clark EA. Regulation of lymphocyte activation by the cell-surface molecule CD22. Immunol Today. 1994; 15(9):442-449. (Biology). View Reference
  5. Law CL, Torres RM, Sundberg HA. Organization of the murine Cd22 locus. Mapping to chromosome 7 and characterization of two alleles. J Immunol. 1993; 151(1):175-187. (Clone-specific). View Reference
  6. Mary C, Laporte C, Parzy D. Dysregulated expression of the Cd22 gene as a result of a short interspersed nucleotide element insertion in Cd22a lupus-prone mice. J Immunol. 2000; 165(6):2987-2996. (Biology). View Reference
  7. Nitschke L, Floyd H, Ferguson DJ, Crocker PR. Identification of CD22 ligands on bone marrow sinusoidal endothelium implicated in CD22-dependent homing of recirculating B cells. J Exp Med. 1999; 189(9):1513-1518. (Biology). View Reference
  8. O'Keefe TL, Williams GT, Davies SL, Neuberger MS. Hyperresponsive B cells in CD22-deficient mice. Science. 1996; 274(5288):798-801. (Biology). View Reference
  9. Stall AM, Wells SM. FACS analysis of murine B-cell populations. In: Herzenberg LA, Weir DM, Blackwell C, ed. Weir's Handbook of Experimental Immunology. Blackwell Science Publishers; 1997:63.1-63.17.
  10. Stoddart A, Ray RJ, Paige CJ. Analysis of murine CD22 during B cell development: CD22 is expressed on B cell progenitors prior to IgM. Int Immunol. 1997; 9(10):1571-1579. (Biology). View Reference
  11. Symington FW, Subbarao B, Mosier DE, Sprent J. Lyb-8.2: A new B cell antigen defined and characterized with a monoclonal antibody. Immunogenetics. 1982; 16(5):381-391. (Immunogen: Immunoprecipitation). View Reference
View All (11) 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.