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      BV421 Mouse Anti-Human Siglec-9 (CD329)
      BV421 Mouse Anti-Human Siglec-9 (CD329)

      Multiparameter flow cytometric analysis of Siglec-9 (CD329) expression on Human peripheral blood leucocyte populations. Human whole blood was stained with either BD Horizon™ BV421 Mouse IgG1, κ Isotype Control (Cat. No. 562438; Left Plot) or BD Horizon™ BV421 Mouse Anti-Human Siglec-9 (CD329) antibody (Cat. No. 569521/569522; Right Plot). Erythrocytes were lysed with BD Pharm Lyse™ Lysing Buffer (Cat. No. 555899). The bivariate pseudocolor density plot showing the correlated expression of Siglec-9 (CD329) [or Ig Isotype control staining] versus side light-scatter (SSC-A) signals was derived from gated events with the forward and side light-scatter characteristics of viable leucocytes. Flow cytometry and data analysis were performed using a BD LSRFortessa™ X-20 Cell Analyzer System and FlowJo™ software.

      BV421 Mouse Anti-Human Siglec-9 (CD329)

      Multiparameter flow cytometric analysis of Siglec-9 (CD329) expression on Human peripheral blood leucocyte populations. Human whole blood was stained with either BD Horizon™ BV421 Mouse IgG1, κ Isotype Control (Cat. No. 562438; Left Plot) or BD Horizon™ BV421 Mouse Anti-Human Siglec-9 (CD329) antibody (Cat. No. 569521/569522; Right Plot). Erythrocytes were lysed with BD Pharm Lyse™ Lysing Buffer (Cat. No. 555899). The bivariate pseudocolor density plot showing the correlated expression of Siglec-9 (CD329) [or Ig Isotype control staining] versus side light-scatter (SSC-A) signals was derived from gated events with the forward and side light-scatter characteristics of viable leucocytes. Flow cytometry and data analysis were performed using a BD LSRFortessa™ X-20 Cell Analyzer System and FlowJo™ software.

      Product Details
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      BD Horizon™
      SIGLEC9; siglec-9; CD329
      Human (QC Testing)
      Mouse BALB/c IgG1, κ
      Human Siglec-9-Fc
      Flow cytometry (Routinely Tested)
      5 µl/test
      27180
      AB_3685129
      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 to the dye under optimum conditions and unconjugated antibody and free dye were removed.
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      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® CompBeads to ensure that BD® CompBeads are appropriate for your specific cellular application.

         For optimal and reproducible results, BD Horizon Brilliant Stain Buffer should be used anytime BD Horizon Brilliant dyes are used in a multicolor flow cytometry panel.  Fluorescent dye interactions may cause staining artifacts which may affect data interpretation.  The BD Horizon Brilliant Stain Buffer was designed to minimize these interactions. When BD Horizon Brilliant Stain Buffer is used in in the multicolor panel, it should also be used in the corresponding compensation controls for all dyes to achieve the most accurate compensation. For the most accurate compensation, compensation controls created with either cells or beads should be exposed to BD Horizon Brilliant Stain Buffer for the same length of time as the corresponding multicolor panel. More information can be found in the Technical Data Sheet of the BD Horizon Brilliant Stain Buffer (Cat. No. 563794/566349) or the BD Horizon Brilliant Stain Buffer Plus (Cat. No. 566385).

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      Product Notices

      1. Please refer to www.bdbiosciences.com/us/s/resources for technical protocols.
      2. This reagent has been pre-diluted for use at the recommended Volume per Test. We typically use 1 × 10^6 cells in a 100-µl experimental sample (a test).
      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. For fluorochrome spectra and suitable instrument settings, please refer to our Multicolor Flow Cytometry web page at www.bdbiosciences.com/colors.
      6. 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.
      7. 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.
      8. Human donor specific background has been observed in relation to the presence of anti-polyethylene glycol (PEG) antibodies, developed as a result of certain vaccines containing PEG, including some COVID-19 vaccines. We recommend use of BD Horizon Brilliant™ Stain Buffer in your experiments to help mitigate potential background. For more information visit https://www.bdbiosciences.com/en-us/support/product-notices.
      9. Please refer to http://regdocs.bd.com to access safety data sheets (SDS).
      10. For U.S. patents that may apply, see bd.com/patents.
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      569521 Rev. 1
      Antibody Details
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      K8

      The K8 monoclonal antibody specifically recognizes Sialic acid-binding Ig-like lectin 9 (Siglec-9) which is also known as CD329. Siglec-9 (CD329) is a single-pass type I transmembrane glycoprotein that is encoded by SIGLEC9 which belongs to the I-type lectins within the Ig superfamily. This lectin is comprised of an N-terminal extracellular region that contains an IgV domain, which binds sialic acid, followed by two Ig-like C2-type domains, a transmembrane region, and an intracellular domain with an immunoreceptor tyrosine-based inhibitory motif (ITIM) and an ITIM-like motif . It is highly expressed on monocytes, neutrophils, and expressed at lower levels on a proportion of NK cells, B cells and T cells. Siglec-9 (CD329) may play roles in the regulation of T cell and NK cell responses and neutrophil apoptosis.

      569521 Rev. 1
      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.
      altImg
      BV421
      Violet 405 nm
      407 nm
      423 nm
      569521 Rev.1
      Citations & References
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      View product citations for antibody "569521" on CiteAb

      Development References (5)

      1. Avril T, Floyd H, Lopez F, Vivier E, Crocker PR. The membrane-proximal immunoreceptor tyrosine-based inhibitory motif is critical for the inhibitory signaling mediated by Siglecs-7 and -9, CD33-related Siglecs expressed on human monocytes and NK cells.. J Immunol. 2004; 173(11):6841-9. (Clone-specific: Flow cytometry, Functional assay). View Reference
      2. Carlin AF, Uchiyama S, Chang YC, Lewis AL, Nizet V, Varki A. Molecular mimicry of host sialylated glycans allows a bacterial pathogen to engage neutrophil Siglec-9 and dampen the innate immune response. Blood. 2009; 113(14):3333-3336. (Biology). View Reference
      3. Fraschilla I, Pillai S. Viewing Siglecs through the lens of tumor immunology.. Immunol Rev. 2017; 276(1):178-191. (Biology). View Reference
      4. Nguyen DH, Hurtado-Ziola N, Gagneux P, Varki A. Loss of Siglec expression on T lymphocytes during human evolution.. Proc Natl Acad Sci U S A. 2006; 103(20):7765-70. (Biology). View Reference
      5. Zhang JQ, Nicoll G, Jones C, Crocker PR. Siglec-9, a novel sialic acid binding member of the immunoglobulin superfamily expressed broadly on human blood leukocytes.. J Biol Chem. 2000; 275(29):22121-6. (Immunogen: Flow cytometry). View Reference
      View All (5) View Less
      569521 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.