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Sheep liver serine-threonine dehydratase. I. Purification and evidence for covalently linked alpha-ketobutyrate as
Biochemistry
|September 23, 1975
Abstract:
L-Serine-threonine dehydratase (EC 4.2.1.16) from sheep liver has been obtained as a highly purified preparation as shown by ultracentrifuge studies and analytical disc gel electrophoresis. The dehydratase has a molecular weight of 98,000 +/- 10,000 and is composed of two nonidentical subunits with molecular weights of 41,000 and 47,000. The 41,000 subunit is covalently linked to the carbonyl reagent-sensitive coenzyme which has been identified as alpha-ketobutyric acid.