品牌:athens research & technology
& Technology 公司位于美国乔治亚州雅典市，从1986年以来一直致力于纯化高纯度，高活性的人类蛋白质和开发这些蛋白的多克隆抗血清。我们的常规产品包括丝氨酸蛋白酶、蛋白酶抑制剂、中性粒细胞酶、载脂蛋白、脂蛋白，血小板蛋白、转铁蛋白、免疫球蛋白等。二十年多年来，世界各地的研究人员都在使用我们公司的产品。在炎症、冠状动脉疾病、自身免疫性疾病、癌症、老年痴呆症等等研究的主要科学出版物中都能看到引用我们公司的产品。
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Extinction Coefficient: 0.81
Lyophilized from 100 mM Na Phosphate, pH 7.3 ,
Purified Native Human Alpha 2 Macroglobulin, Human Plasma, Fast Form
Bulk Qty Available.
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 cleaveage 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 encephalopathies.
Purity: >=95% by SDS-PAGE
Prepared from plasma shown to be non reactive for HBsAg, anti-HCV, anti-HBc, and negative for anti-HIV 1 & 2 by FDA approved tests.
Athens Research & Technology products are laboratory reagents and are not to be administered to humans or used for any drug purpose. For research use only.