VLDL substrate properties and efficiency of their metabolic transformation by LPL |
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| Authors: | A D Dergunov V V Shuvaev N V Perova |
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| Institution: | (1) Department of Biochemistry, USSR Research Centre for Preventive Medicine, 10 Petroverigski Str., 101953 Moscow, (USSR) |
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| Abstract: | Summary A study was made of the regulation of the triglyceride hydrolysis catalysed by LPL from bovine milk, by the apoproteins from human plasma VLDL. Both isolated apolipoproteins, and those found on the surface of plasma VLDL particles, were investigated. A concentration-dependent activating action of apo C-II on the hydrolysis of emulsified triolein, and uncompetitive inhibition of VLDL triglyceride hydrolysis by apo C-III were found. It is suggested that VLDL lipolysis might be controlled in vivo trough the variation of the relative surface content of these enzymatic activity modulators. |
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| Keywords: | Human plasma very low density lipoproteins apolipoproteins C-II and C-III lipoprotein lipase |
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