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Safety Data Sheet (SDS) PE Anti-mouse CD11a Antibody     Product Data Sheet (PDF)    
PE Anti-mouse CD11a Antibody
1105535 50 µg $90.00       
Clone: M17/4
Isotype: Rat IgG2a, κ
Reactivity: Mouse
Immunogen: C57BL/6 mouse splenic secondary cytotoxic T cells
Formulation: Phosphate-buffered solution, pH 7.2, containing 0.09% sodium azide.
Preparation: The antibody was purified by affinity chromatography, and conjugated with PE under optimal conditions. The solution is free of unconjugated PE and unconjugated antibody.
Concentration: 0.2 mg/ml
Storage & Handling: The antibody solution should be stored undiluted between 2°C and 8°C, and protected from prolonged exposure to light. Do not freeze.

FC - Quality tested

Application Notes:

The M17/4 antibody can block CD11a-mediated cellular adhesion. Additional reported applications of this antibody (for the relevant formats) include: immunoprecipitation1,2, in vitro blocking of cell-cell adhesion1,2 and FOXP3 expression5, and immunohistochemical staining of acetone-fixed frozen sections3. The M17/4 antibody does not block the binding of 2D7 antibody to CD11a.

Recommended Usage:

Each lot of this antibody is quality control tested by immunofluorescent staining with flow cytometric analysis. For flow cytometric staining, the suggested use of this reagent is ≤ 0.25 µg per 106 cells in 100 µl volume. It is recommended that the reagent be titrated for optimal performance for each application.

Application References:

1. Sanchez-Madrid F, et al. 1982. Cell Immunol. 73:1. (IP, Block)
2. Kuhlman P, et al. 1991. J. Immunol. 146:1773. (IP, Block)
3. Mizgerd JP, et al. 1997. J. Exp. Med. 186:1357. (IHC)
4. Hailman E and Allen PM. 2005. J. Immunol. 175:4847. (FC)
5. Verhagen J and Wraith DC. 2014. J. Immunol. Methods. S0022. (Block) PubMed

C57BL/6 mouse splenocytes stained with

C57BL/6 mouse splenocytes stained with M17/4 PE


CD11a is a 180 kD glycoprotein, also known as αL integrin, LFA-1 α, Ly-15, or Ly-21. It is a member of the integrin family, primarily expressed on lymphocytes, monocytes/macrophages, and granulocytes. In association with CD18, the CD11a/CD18 complex forms LFA-1. CD11a plays an important role in intercellular adhesion and costimulation by binding its ligands, ICAM-1 (CD54), ICAM-2 (CD102), and ICAM-3 (CD50).

Other Names: αL integrin, LFA-1 α subunit, Ly-15, Ly-21, ITGAL
Structure: Integrin family, associates with integrin β2 (CD18), 180 kD
Distribution: Lymphocytes, granulocytes, monocytes, macrophages
Function: Cellular adhesion
Ligand Receptor: ICAM-1 (CD54), ICAM-2 (CD102), ICAM-3 (CD50)
Antigen References:

1. Barclay A, et al. 1997. The Leukocyte Antigen FactsBook Academic Press.
2. Springer TA. 1994. Cell 76:301.
3. Lub M, et al. 1995. Immunol. Today 16:479.