Confocal immunofluorescent analysis of mouse brain microglia (left) or peripheral macrophages of the liver (right) using CD11b/ITGAM (M1/70) Rat mAb (green). Sections were mounted in ProLong® Gold Antifade Reagent with DAPI #8961 (blue).
Confocal immunofluorescent analysis of brain from the 5XFAD mouse model of Alzheimer’s disease using CD11b/ITGAM (M1/70) Rat mAb (green) and β-Amyloid (D54D2) XP® Rabbit mAb #8243 (red). Sections were mounted in ProLong® Gold Antifade Reagent with DAPI #8961 (blue).
|Source/Isotype||Rat IgG2b kappa|
Supplied in 10 mM sodium HEPES (pH 7.5), 150 mM NaCl, 100 µg/ml BSA, 50% glycerol and less than 0.02% sodium azide. Store at –20°C. Do not aliquot the antibody.
NOTE: Prepare solutions with reverse osmosis deionized (RODI) or equivalent grade water.
Recommended Fluorochrome-conjugated Anti-Rat secondary antibodies:
Cover sections with 4% formaldehyde dilute in 1X PBS.
NOTE: Formaldehyde is toxic, use only in fume hood.
NOTE: All subsequent incubations should be carried out at room temperature unless otherwise noted in a humid light-tight box or covered dish/plate to prevent drying and fluorochrome fading.
posted November 2006
revised July 2016
Protocol Id: 152
CD11b/ITGAM (M1/70) Rat mAb recognizes endogenous levels of total CD11b/ITGAM protein. This antibody detects an epitope within the extracellular domain.
This monoclonal antibody was purified from tissue culture supernatant via affinity chromatography.
Cluster of differentiation molecule 11b (CD11b)/Integrin alpha M (ITGAM) is a transmembrane protein forming heterodimers that are composed of α and β subunits (1). CD11b is expressed by, and commonly used as a marker for, myeloid lineage cells, including neutrophils, monocytes, macrophages, and microglia (2). CD11b is phosphorylated at Ser1126 (cytoplasmic tail) in neutrophils. Research has shown that this phosphorylation event plays a role for leukocytes traveling from the blood stream to tissues (3). Furthermore, genome-wide association studies have linked CD11b to autoimmune diseases, such as systemic lupus erythematous (SLE) (4).
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