Ecto-ATPase

Banerjee, Ranajit K (1981) Ecto-ATPase Molecular and Cellular Biochemistry, 37 (2). pp. 91-99. ISSN 0300-8177

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Official URL: http://www.springerlink.com/content/rx47x576886rg0...

Related URL: http://dx.doi.org/10.1007/BF02354932

Abstract

An ecto-adenosine triphosphatase (E.C. 3.6.1.4 ATP-phosphohydrolase) is shown to be localised on the outer surface of varieties of cell membrane. The enzyme is different from the ATPase involved in biological energy transduction and ion transport mechanism. The characteristic of the enzyme lies in having a very broad substrate specificity and is inhibited by EDTA and higher concentration of ATP. The enzyme is dependent on bivalent metal ions, Mg++ or Ca++ for its optimum activity. The enzyme is highly sensitive to SH-reagents but insensitive to inhibitors of mitochondrial ATPase or Na+-K+-ATPase. The possible functions of the enzyme in being oriented outside the cell membrane is discussed.

Item Type:Article
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ID Code:5261
Deposited On:18 Oct 2010 07:39
Last Modified:14 May 2011 09:11

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