Mouse Monoclonal to CD11b activation epitope
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(integrin alphaM subunit) is a 165-170 kDa type I transmembrane glycoprotein that non-covalently associates with integrin beta2 subunit (CD18); expression of the CD11b chain on the cell surface requires the presence of the CD18 antigen. CD11b/CD18 integrin (Mac-1, CR3) is highly expressed on NK cells, neutrophils, monocytes and less on macrophages.
CD11b/CD18 integrin is implicated in various adhesive interactions of monocytes, macrophages and granulocytes, facilitating their diapedesis, as well as it mediates the uptake of complement coated particles, serving as a receptor for the iC3b fragment of the third complement component.
The mouse monoclonal antibody CBRM1/5 recognizes an activation-dependent epitope on CD11b (Mac-1alpha), a 165-170 kDa type 1 transmembrane protein mainly expressed on monocytes, granulocytes and NK-cells. The antibody recognizes a subset of CD11b molecules on neutrophils and monocytes activated with chemoattractants or phorbol esters and does not recognize CD11b on non-activated cells.
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- Flow Cytometry
- Functional Application
Indicated dilutions are recommended starting points for use of this product. Working concentrations should be determined by the investigator.
Product Specific References
*Diamond MS, Springer TA: A subpopulation of Mac-1 (CD11b/CD18) molecules mediates neutrophil adhesion to ICAM-1 and fibrinogen. J Cell Biol. 1993 Jan;120(2):545-56. [Abstract] [Full Text]
*Fagerholm SC, Varis M, Stefanidakis M, Hilden TJ, Gahmberg CG: alpha-Chain phosphorylation of the human leukocyte CD11b/CD18 (Mac-1) integrin is pivotal for integrin activation to bind ICAMs and leukocyte extravasation. Blood. 2006 Nov 15;108(10):3379-86. [Abstract] [Full Text]
For research use only. Not for drug, diagnostic or other use.
Surface staining of PMA-activated human peripheral blood cells with anti-human CD11b activation epitope (CBRM1/5