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Fetuin-A (AHSG)

Fetuin-A (AHSG)

Cat no: F4102-03C

Supplier: United States Biological
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Fetuin-A (AHSG),59kD glycoprotein, consisting of two cystatin-like domains and a smaller unrelated domain, is predominantly sinthetized in liver . It is secreted into the blood stream and deposited as a noncollagenous protein in mineralized bones and teeth. Fetuin-A occurs in high serum concentrations during foetal life, whereas its level declines following infection, inflamatory and malignancy. Fetuin-A acts as an important circulating inhibitor of ectopic calcification, frequent complication of many degenerative diseases. Low serum level of Fetuin-A is associated with vascular and valvular calcification, atherosclerosis, malnutrition and higher cardiovascular mortality in chronic renal failure, liver cancer and liver cirrhosis patients on long-term dialysis. AHSG protein represents a natural inhibitor of tyrosinase kinase activity of the insulin receptor. It may play a significant role in regulating postprandial glucose disposal, insulin sensitivity, weight gain, and fat accumulation. The serum and bone-resident Fetuin-A binds to transforming growth factor- beta and blocks TGF- beta binding to cell surface receptors. Applications: Suitable for use in ELISA, Immunoturbidimetry and Western Blot. Other applications not tested. Recommended Dilution: Optimal dilutions to be determined by the researcher. Storage and Stabillty: Lyophilized powder may be stored at -20 degrees C. Stable for 12 months at -20 degrees C. Reconstitute with sterile ddH2O. Aliquot to avoid repeated freezing and thawing. Store at -20 degrees C. Reconstituted product is stable for 12 months at -20 degrees C. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap. Further dilutions can be made in assay buffer.
Catalogue number: F4102-03C
Reactivities: Human
Hosts: Goat
Applications: ELISA, Western Blot
Size: 100ug
Form: Supplied as a lyophilized powder in PBS, pH 7.2. No preservative added. Reconstitute with 100ul sterile dH2O. Let the lyophilized pellet dissolve completely.
P type: Pab
Isotype: IgG
Purity: Purified by Immunoaffinity chromatography.
References: 1. Weikert C, Stefan N, Schulze MB, Pischon T, Berger K, Joost HG, Haring HU, Boeing H, Fritsche A. Plasma Fetuin-A Levels and the Risk of Myocardial Infarction and Ischemic Stroke. Circulation. 2008 Nov 24; 2. Stefan N, Fritsche A, Weikert C, Boeing H, Joost HG, Haring HU, Schulze MB. Plasma Fetuin-A Levels and the Risk of Type 2 Diabetes. Diabetes. 2008 Jul 15; 3. Arnaud P, Kalabay L. Alpha2-HS glycoprotein: a protein in search of a function. Diabetes Metab Res Rev. 2002 Jul-Aug; 18(4): 311-4. Review. 4. Ketteler M, Bongartz P, Westenfeld R, Wildberger JE, Mahnken AH, Bohm R, Metzger T, Wanner C, Jahnen-Dechent W, Floege J. Association of low fetuin-A (AHSG) concentrations in serum with cardiovascular mortality in patients on dialysis: a cross-sectional study. Lancet. 2003 Mar 8; 361(9360): 827-33. 5. Jersmann HP, Dransfield I, Hart SP. Fetuin/alpha2-HS glycoprotein enhances phagocytosis of apoptotic cells and macropinocytosis by human macrophages. Clin Sci (Lond). 2003 Sep; 105(3): 273-8. 6. Schafer C, Heiss A, Schwarz A, Westenfeld R, Ketteler M, Floege J, Muller-Esterl W, Schinke T, Jahnen-Dechent W. The serum protein alpha 2-Heremans-Schmid glycoprotein/fetuin-A is a systemically acting inhibitor of ectopic calcification. J Clin Invest. 2003 Aug; 112(3): 357-66. 7. Denecke B, Graber S, Schafer C, Heiss A, Woltje M, Jahnen-Dechent W. Tissue distribution and activity testing suggest a similar but not identical function of fetuin-B and fetuin-A. Biochem J. 2003 Nov 15; 376(Pt 1): 135-45.
Additional info: Recognizes human Fetuin-A.

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