anti-CD43 antibody [MEM-59] (PE)

anti-CD43 antibody [MEM-59] (PE) for Flow cytometry and Human

Developmental Biology antibody; Immune System antibody


Product Description

PE-conjugated Mouse Monoclonal antibody [MEM-59] recognizes CD43

Tested Reactivity Hu
Tested Application FACS
Specificity The clone MEM-59 recognizes neuraminidase-sensitive epitope on CD43 (Leukosialin), a 95-135 kDa type I transmembrane glycoprotein (mucin-type) which is involved in lymphocyte activation. CD43 is expressed by platelets and at high levels on the surface of all leukocytes; it is negative on resting B lymphocytes and erythrocytes.
HLDA IV; WS Code NL 604
HLDA V; WS Code AS S290
Host Mouse
Clonality Monoclonal
Clone MEM-59
Isotype IgG1
Target Name CD43
Antigen Species Human
Immunogen Human T lymphocytes.
Conjugation PE
Alternate Names CD antigen CD43; B-cell differentiation antigen LP-3; Sialophorin; Cd43; Galgp; A630014B01Rik; Ly-48; Lymphocyte antigen 48; Ly48; Leukocyte sialoglycoprotein; Leukosialin

Application Instructions

Application Suggestion
Tested Application Dilution
FACS20 µl / 10^6 cells
Application Note * The dilutions indicate recommended starting dilutions and the optimal dilutions or concentrations should be determined by the scientist.


Form Liquid
Purification Note The purified antibody is conjugated with R-Phycoerythrin (PE) under optimum conditions. The conjugate is purified by size-exclusion chromatography and adjusted for direct use. No reconstitution is necessary.
Buffer PBS, 15 mM Sodium azide and 0.2% (w/v) high-grade protease free BSA
Preservative 15 mM Sodium azide
Stabilizer 0.2% (w/v) high-grade protease free BSA
Storage Instruction Aliquot and store in the dark at 2-8°C. Keep protected from prolonged exposure to light. Avoid repeated freeze/thaw cycles. Suggest spin the vial prior to opening. The antibody solution should be gently mixed before use.
Note For laboratory research only, not for drug, diagnostic or other use.


Database Links

GeneID: 6693 Human SPN

Swiss-port # P16150 Human Leukosialin

Gene Symbol SPN
Gene Full Name sialophorin
Background CD43 (leukosialin, sialophorin) is a transmembrane mucin-like protein with high negative charge, expressed on the surface of most hematopoietic cells. CD43 contributes to a repulsive barrier that interferes with cellular adhesion, however, in certain cases also promotes leukocyte aggregation. By interaction with actin-binding proteins ezrin and moesin CD43 plays a regulatory role in remodeling T-cell morphology and regulates cell-cell interactions during lymphocyte traffic. CD43 signaling both enhances LFA-1 adhesiveness and counteracts LFA-1 induction via other receptors. Expression of CD43 causes induction of functionally active tumour suppressor p53 protein, but in case of p53 and ARF defficiency CD43 promotes tumour proliferation and viability. It appears to be an important modulator of leukocyte functions.
Function One of the major glycoproteins of thymocytes and T lymphocytes. Plays a role in the physicochemical properties of the T-cell surface and in lectin binding. Presents carbohydrate ligands to selectins. Has an extended rodlike structure that could protrude above the glycocalyx of the cell and allow multiple glycan chains to be accessible for binding. Is a counter-receptor for SN/Siglec-1 (By similarity). During T-cell activation is actively removed from the T-cell-APC (antigen-presenting cell) contact site thus suggesting a negative regulatory role in adaptive immune response (By similarity). [UniProt]
Research Area Developmental Biology antibody; Immune System antibody
Calculated MW 40 kDa

Images (1) Click the Picture to Zoom In

  • ARG53849 anti-CD43 antibody [MEM-59] (PE) FACS image

    Flow Cytometry: Human peripheral blood stained with ARG53849 anti-CD43 antibody [MEM-59] (PE).

Clone References

CD24 expression identifies teratogen-sensitive fetal neural stem cell subpopulations: evidence from developmental ethanol exposure and orthotopic cell transfer models.

FACS / Mouse

Tingling JD et al.
PLoS One.,  (2013)




The carboxy terminus of NBS1 is required for induction of apoptosis by the MRE11 complex.

WB / Mouse

Stracker TH et al.
Nature.,  (2007)




Molecular mechanisms involved in CD43-mediated apoptosis of TF-1 cells. Roles of transcription Daxx expression, and adhesion molecules.

Cermák L et al.
J Biol Chem.,  (2002)




MEM-59 monoclonal antibody detects a CD43 epitope involved in lymphocyte activation.

Alvarado M et al.
Eur J Immunol.,  (1995)




CD59 molecule: a second ligand for CD2 in T cell adhesion.

Deckert M et al.
Eur J Immunol.,  (1992)