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Phosphatase of Chlamydomonas reinhardi: biochemical and cytochemical approach with specific mutants.

By R F Matagne, R Loppes and R Deltour

Abstract

The unicellular alga Chlamydomonas reinhardi produces two constitutive acid phosphatases and three depressible phosphatases (a neutral and two alkaline ones) that can utilize napthyl phosphate as a substrate. Specific mutants depressible phosphatase were used to investigate biochemical properties and the cytochemical localization of these enzymes. The two constitutive phosphatases show similar pH optima (about 5.0) and Km values (2 x 10(-3) to 3.3 x 10(-3) M) but differ in their heat sensitivity and affinity for glycerophosphate

Topics: Research Article
Year: 1976
OAI identifier: oai:pubmedcentral.nih.gov:233232
Provided by: PubMed Central
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