Alpha 2 Macroglobulin Protein | A2M protein

Alpha 2 Macroglobulin, Human Plasma, Fast Form

Cat. Num. AAA844029

• Gene Names: A2M; A2MD; CPAMD5; FWP007; S863-7
• Applications: SDS-Page
• Purity: >=95%
• Synonyms: Alpha 2 Macroglobulin; Human Plasma; Fast Form; C3 and PZP-like alpha-2-macroglobulin domain-containing protein 5; A2M; CPAMD5; FWP007; A2M protein

• Host: Human Plasma
• Purity/Purification: >=95%
• Form/Format: Lyophilized from 100 mM Na Phosphate, pH 7.2.; Appearance: Lyophilized
• Sequence Length: 1474

• Applicable Applications for A2M protein: SDS-PAGE
• Solubility/Reconstitution Instructions: In water or aqueous buffer
• Handling: Centrifuge the vial prior to opening.
• Preparation and Storage: At -20 degree C; Shelf Life: 12 months

Testing Data

Related Product Information for A2M protein

Background: Alpha 2 Macroglobulin (A2M) is a plasma protease inhibitor which has been shown to exist in two forms. The Slow Form of A2M (S-A2M) is the form which possesses the ability to bind and inhibit proteases by a "trap" method. The Fast Form of A2M (F-A2M) is generated when S-A2M undergoes a conformational change due to either entrapment of a protease in the A2M bait region, or chemical cleavage of an internal thiol ester bond located near the bait region. F-A2M does not possess the ability to bind and inhibit protease activity. F-A2M is rapidly taken up by the liver, with a half-life of 2-4 minutes. In vivo, F-A2M typically represents only 0.17-0.7% of the total A2M in blood plasma of adults. The F-A2M plasma concentration is, however, increased in many disease states including pancreatitis, multiple sclerosis and sepsis. F-A2M has also been implicated in the inhibition of amyloid formation associated with Alzheimer's disease and spongiform encephalopathy.

Product Categories/Family for A2M protein

Proteins and Enzymes; Native Proteins (NEW CATEGORY) Proteins and Enzymes; Proteins and Enzymes (A-Z)

NCBI and Uniprot Product Information

• NCBI GI #: 66932947
• NCBI GeneID: 2
• NCBI Accession #: NP_000005.2
• NCBI GenBank Nucleotide #: NM_000014.4
• UniProt Accession #: P01023; Q13677; Q59F47; Q5QTS0; Q68DN2; Q6PIY3; Q6PN97
• Molecular Weight: 725 kDa (Homotetramer, Subunit size: 180 kDa)
• NCBI Official Full Name: alpha-2-macroglobulin
• NCBI Official Synonym Full Names: alpha-2-macroglobulin
• NCBI Official Symbol: A2M
• NCBI Official Synonym Symbols: A2MD; CPAMD5; FWP007; S863-7
• NCBI Protein Information: alpha-2-macroglobulin
• UniProt Protein Name: Alpha-2-macroglobulin
• Protein Family: Alpha-2-macroglobulin
• UniProt Gene Name: A2M
• UniProt Synonym Gene Names: CPAMD5; Alpha-2-M
• UniProt Entry Name: A2MG_HUMAN

NCBI Description

Alpha-2-macroglobulin is a protease inhibitor and cytokine transporter. It inhibits many proteases, including trypsin, thrombin and collagenase. A2M is implicated in Alzheimer disease (AD) due to its ability to mediate the clearance and degradation of A-beta, the major component of beta-amyloid deposits. [provided by RefSeq, Jul 2008]

Uniprot Description

A2M: Is able to inhibit all four classes of proteinases by a unique 'trapping' mechanism. This protein has a peptide stretch, called the 'bait region' which contains specific cleavage sites for different proteinases. When a proteinase cleaves the bait region, a conformational change is induced in the protein which traps the proteinase. The entrapped enzyme remains active against low molecular weight substrates (activity against high molecular weight substrates is greatly reduced). Following cleavage in the bait region a thioester bond is hydrolyzed and mediates the covalent binding of the protein to the proteinase. Belongs to the protease inhibitor I39 (alpha-2- macroglobulin) family.

Protein type: Inhibitor; Secreted; Secreted, signal peptide

Chromosomal Location of Human Ortholog: 12p13.31

Cellular Component: extracellular region; cytosol

Molecular Function: serine-type endopeptidase inhibitor activity; protein binding; enzyme binding; protease binding; growth factor binding; interleukin-8 binding; interleukin-1 binding; calcium-dependent protein binding; tumor necrosis factor binding; receptor binding

Biological Process: negative regulation of complement activation, lectin pathway; extracellular matrix disassembly; platelet activation; regulation of small GTPase mediated signal transduction; extracellular matrix organization and biogenesis; platelet degranulation; small GTPase mediated signal transduction; stem cell differentiation; blood coagulation; blood coagulation, intrinsic pathway

Disease: Alzheimer Disease; Alpha-2-macroglobulin Deficiency