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Biochim Biophys Acta. 1986 Apr 25;856(3):566-70.

Demonstration of plasma-membrane adenosine diphosphatase activity in rat lung.

Abstract

The adenosine diphosphatase (ADPase) activity of rat lung has been investigated. Subcellular fractionation of lung tissue homogenates by sucrose density gradient centrifugation has shown the ADPase activity to be associated with the plasma membrane. ADPase was solubilised from the membranes and fractionated by ammonium sulphate precipitation to separate a specific, low-Km ADPase from non-specific alkaline phosphatase activity. The solubilised ADPase has a Km of 50 microM at pH 7.5 and appears to be distinct from ATPase.

PMID:
3008836
DOI:
10.1016/0005-2736(86)90148-3
[Indexed for MEDLINE]

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