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R718 Mouse Anti-Human CD43
Product Details
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BD OptiBuild™
Leukosialin; LSN; Galactoglycoprotein; GALGP; GPL115; SPN; Sialophorin
Human (Tested in Development)
Mouse IgG1, κ
Activated Human T Cells
Flow cytometry (Qualified)
0.2 mg/ml
IV N601; V AS297
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:
752087 Rev. 1
Antibody Details
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The L60 monoclonal antibody specifically binds to CD43 which is also known as Leukosialin (LSN) or Galactoglycoprotein (GALGP). CD43 is a ~95-135 kDa heavily O-sialylated type I transmembrane glycoprotein that is encoded by SPN (sialophorin) and belongs to the cell surface mucin family. The L60 antibody recognizes a sialic acid-dependent determinant on CD43. CD43 is highly expressed on T lymphocytes, thymocytes, monocytes, granulocytes, bone marrow stem cells, pre-B cells and activated B cells plasma cells but not on resting peripheral blood B cells, red blood cells, and non-hematopoietic cells. CD43 is enzymatically shed from leucocyte surfaces following activation by various stimuli. CD43 appears to be involved in mediating intercellular interactions that regulate leucocyte 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.

752087 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
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Citations & References
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Development References (15)

  1. Ardman B, Sikorski MA, Staunton DE. CD43 interferes with T-lymphocyte adhesion. Proc Natl Acad Sci U S A. 1992 June; 89(11):5001-5005. (Clone-specific: Flow cytometry, Functional assay, Immunoprecipitation, Radioimmunoassay). View Reference
  2. Bazil V, Strominger JL. CD43, the major sialoglycoprotein of human leukocytes, is proteolytically cleaved from the surface of stimulated lymphocytes and granulocytes. Proc Natl Acad Sci U S A. 1993 May; 90(9):3792-3796. (Biology). View Reference
  3. Campanero MR, Pulido R, Alonso JL, et al. Down-regulation by tumor necrosis factor-alpha of neutrophil cell surface expression of the sialophorin CD43 and the hyaluronate receptor CD44 through a proteolytic mechanism. Eur J Immunol. 1991 December; 21(12):3045-3048. (Biology). View Reference
  4. Cyster JG, Williams AF. The importance of cross-linking in the homotypic aggregation of lymphocytes induced by anti-leukosialin (CD43) antibodies. Eur J Immunol. 1992 October; 22(10):2565-2572. (Biology). View Reference
  5. Kuijpers TW, Hoogerwerf M, Kuijpers KC, Schwartz BR, Harlan JM. Cross-linking of sialophorin (CD43) induces neutrophil aggregation in a CD18-dependent and a CD18-independent way. J Immunol. 1992 August; 149(3):998-1003. (Biology). View Reference
  6. Ngan BY, Picker LJ, Medeiros LJ, Warnke RA. Immunophenotypic diagnosis of non-Hodgkin's lymphoma in paraffin sections. Co-expression of L60 (Leu-22) and L26 antigens correlates with malignant histologic findings.. Am J Clin Pathol. 1989; 91(5):579-83. (Clone-specific: Immunohistochemistry). View Reference
  7. Park JK, Rosenstein YJ, Remold-O'Donnell E, Bierer BE, Rosen FS, Burakoff SJ. Enhancement of T-cell activation by the CD43 molecule whose expression is defective in Wiskott-Aldrich syndrome. Nature. 1991 April; 350(6320):706-709. (Biology). View Reference
  8. Rieu P, Porteu F, Bessou G, Lesavre P, Halbwachs-Mecarelli L. Human neutrophils release their major membrane sialoprotein, leukosialin (CD43), during cell activation. Eur J Immunol. 1992 November; 22(11):3021-3026. (Biology). View Reference
  9. Rosenstein Y, Park JK, Hahn WC, Rosen FS, Bierer BE, Burakoff SJ. CD43, a molecule defective in Wiskott-Aldrich syndrome, binds ICAM-1.. Nature. 1991; 354(6350):233-5. (Biology). View Reference
  10. Segal GH, Stoler MH, Tubbs RR. The "CD43 only" phenotype. An aberrant, nonspecific immunophenotype requiring comprehensive analysis for lineage resolution. Am J Clin Pathol. 1992 June; 97(6):861-865. (Biology). View Reference
  11. Stefanova I, Hilgert I, and Horejsi V. Studies of the CD43 panel antibodies. In: Knapp W. W. Knapp .. et al., ed. Leucocyte typing IV : white cell differentiation antigens. Oxford New York: Oxford University Press; 1989:608.
  12. Stoll M, Dalchau R, Schmidt RE. Cluster report: CD43. In: Knapp W. W. Knapp .. et al., ed. Leucocyte typing IV : white cell differentiation antigens. Oxford New York: Oxford University Press; 1989:604-608.
  13. Stross WP, Flavell DJ, Flavell SU, et al. Epitope specificity and staining properties of CD43 (sialophorin) antibodies. In: Knapp W. W. Knapp .. et al., ed. Leucocyte typing IV : white cell differentiation antigens. Oxford New York: Oxford University Press; 1989:615.
  14. Stross WP, Warnke RA, Flavell DJ, et al. Molecule detected in formalin fixed tissue by antibodies MT1, DF-T1, and L60 (Leu-22) corresponds to CD43 antigen.. J Clin Pathol. 1989; 42(9):953-61. (Clone-specific: Western blot). View Reference
  15. Wieczorek R, Buck D, Bindl J, Knowles DM. Monoclonal antibody Leu-22 (L60) permits the demonstration of some neoplastic T cells in routinely fixed and paraffin-embedded tissue sections.. Hum Pathol. 1988; 19(12):1434-43. (Immunogen: Immunohistochemistry). View Reference
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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.