The Integrin family proteins are heterodimeric transmembrane receptors composed of an alpha and a beta subunit. The Integrin alphaM subunit, also known as MAC-1 alpha subunit or CD11b, combines with the Integrin beta2 subunit (CD18) to form the non-covalent heterodimer Integrin alphaM/ beta2, also known as MAC-1 and complement receptor type 3 (CR3). Integrin alphaM/ beta2 is expressed on granulocytes, macrophages, dendritic cells and natural killer cells. Upon activation, alphaM/ beta2 can bind several ligands (including ICAM-1, fibrinogen, and the C3 complement fragment, C3bi) to mediate phagocyte adhesion, migration and ingestion of complement-opsonized particles (1,2).

References

Beller, D.J. et al. (1982) J. Exp. Med. 156:1000.
Ault, K.A. and T.A. Springer (1981) J. Immunol. 126:359.

Alternate Names

CD11b, Integrin alpha M, ITGAM

Entrez Gene IDs

3684 (Human); 16409 (Mouse)

Gene Symbol

ITGAM

UniProt

NP_032427 (Integrin alpha M) & P11835 (Integrin beta 2)

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This product is provided under an intellectual property license from Life Technologies Corporation. The transfer of this product is conditioned on the buyer using the purchased product solely in research conducted by the buyer, excluding contract research or any fee for service research, and the buyer must not (1) use this product or its components for (a) diagnostic, therapeutic or prophylactic purposes; (b) testing, analysis or screening services, or information in return for compensation on a per-test basis; or (c) manufacturing or quality assurance or quality control, and/or (2) sell or transfer this product or its components for resale, whether or not resold for use in research. For information on purchasing a license to this product for purposes other than as described above, contact Life Technologies Corporation, 5781 Van Allen Way, Carlsbad, CA 92008 USA or outlicensing@thermofisher.com.

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Mouse CD11b/Integrin alpha M Alexa Fluor™ Plus 555-conjugated Antibody

R&D Systems, part of Bio-Techne | Catalog # FAB11241AFP555

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Background: CD11b/Integrin alpha M