New sensitive assay for phosphatidylserine decarboxylase based on the detection of CO2 from nonradiolabeled phosphatidylserine

A new rapid assay for phosphatidylserine decarboxylase, which is sensitive in the nanomolar range, is described. Synthesis of radiolabeled phosphatidylserine for use as a substrate is not required, since the assay, unlike previous ones, is based on the detection of CO2 liberated from unlabeled phosp...

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Bibliographic Details
Main Authors: Thomas G. Warner, Edward A. Dennis
Format: Article
Language:English
Published: Elsevier 1973-09-01
Series:Journal of Lipid Research
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S002222752036867X
Description
Summary:A new rapid assay for phosphatidylserine decarboxylase, which is sensitive in the nanomolar range, is described. Synthesis of radiolabeled phosphatidylserine for use as a substrate is not required, since the assay, unlike previous ones, is based on the detection of CO2 liberated from unlabeled phosphatidylserine. The assay employs a gas chromatographic procedure for the analysis of methane formed by catalytic conversion of the C02 produced as a product of the enzymatic reaction.
ISSN:0022-2275