Human alpha2-Macroglobulin Alexa Fluor™ Plus 680-conjugated Antibody
R&D Systems, part of Bio-Techne | Catalog # AF1938AFP680
Key Product Details
Species Reactivity
Applications
Label
Antibody Source
Product Specifications
Specificity
Clonality
Host
Isotype
Applications
Immunocytochemistry
Immunoprecipitation
Western Blot
Background: alpha 2-Macroglobulin
Human alpha2-macroglobulin (h alpha2M) is a serum glycoprotein that has sequence similarity to other members of the alpha2M family including complement components C3, C4 and C5 (1). alpha2M is synthesized as a polypeptide of 1474 amino acids with a signal peptide (23 residues) (2). The mature protein is a tetramer (720 kDa) of 4 identical subunits (180 kDa), which form two disulfide bond-linked dimers. As a general and irreversible protease inhibitor implicated in many processes, alpha2M is able to inhibit all four classes of proteases by a unique trapping mechanism. The bait region of h alpha2M (residues 690‑728) contains specific cleavage sites for different proteases. The cleavage of the bait region by a protease induces a conformation change in alpha2M, which then traps and forms a covalent bond with the protease. The trapped protease remains active against small peptide substrates but loses its ability to interact with large protein substrates or inhibitors.
References
- Sottrup-Jensen, L. et al. (1985) Proc. Natl. Acad. Sci. USA 82:9.
- Kan, C.C. et al. (1985) Proc. Natl. Acad. Sci. USA 82:2282.
Alternate Names
Entrez Gene IDs
Gene Symbol
Additional alpha 2-Macroglobulin Products
Product Specific Notices
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.
For research use only