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  • Title: Subcellular localization of isoleucine-valine biosynthetic enzymes in yeast.
    Author: Ryan ED, Kohlhaw GB.
    Journal: J Bacteriol; 1974 Nov; 120(2):631-7. PubMed ID: 4616942.
    Abstract:
    By using the method of stepwise homogenization of yeast spheroplast lysates employed previously with the leucine biosynthetic enzymes, it is shown that threonine deaminase, acetohydroxy acid synthase, Mg(2+)-dependent isomero-reductase, and dihydroxy acid dehydratase are particulate. Density gradient centrifugation and the behavior of marker enzymes suggest that all of the above enzymes of the isoleucine-valine biosynthetic pathway are associated with the mitochondria.
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