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  • Title: Hormonal control of fat cells adenylate cyclase.
    Author: Harris R, Bennun A.
    Journal: Mol Cell Biochem; 1976 Dec 10; 13(3):141-6. PubMed ID: 187930.
    Abstract:
    Fat cells were preincubated for 2 h in the presence and absence of growth hormone (GH) and Dexamethasone (Dex) before the addition of increasing concentrations of either epinephrine, theophylline or glucagon and final incubation of the cells for an additional 5 minutes. GH and Dex increased by 85%, 28% and 72%, respectively, the cAMP levels reached in the sole presence of 10(-5)M epinephrine, 10(-2)M theophylline or 5 X 10(-5)M glucagon. An adenylate cyclase particulate preparation shows that epinephrine decreases Km from 2mM to 0.6 MM and increases Vmax and the strength of interaction value (n) from 0.91 to 1.75.
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