Halophilic enzymes in cell-free extracts of Halobacterium salinarium
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Halophilic enzymes in cell-free extracts of Halobacterium salinarium.
Cells of the obligately halophilic bacterium Halobacterium salinarium have been shown to contain high concentrations of sodium and potassium chloride (Christian and Ingram, J. Gen. Microbiol. 20:27, 1959; Christian and Waltho, Biochim. Biophys. Acta 65:506, 1962). Enzymes extracted from this organism require up to 25% NaCl for optimal activity (Baxter and Gibbons, Can. J. Microbiol. 2:599, 1956...
متن کاملArginine metabolism in Halobacterium salinarium, an obligately halophilic bacterium.
Dundas, Ian E. D. (University of Illinois, Urbana), and H. Orin Halvorson. Arginine metabolism in Halobacterium salinarium, an obligately halophilic bacterium. J. Bacteriol. 91:113-119. 1966.-Arginine was shown to be essential for growth of Halobacterium salinarium strain 1 in a chemically defined medium. Citrulline was the only compound which could substitute for arginine without affecting gro...
متن کاملArginine deiminase from Halobacterium salinarium. Purification and properties.
Arginine deiminase from the extreme halophilic archaebacterium Halobacterium salinarium was purified to homogeneity in a four-step procedure with a 310-fold enrichment. The enzyme consists of two identical subunits of 55 kDa; its native molecular mass is 105 kDa. The pI of 4.7 indicates that acidic nature of the protein, which is evidenced by its amino acid composition, which shows an excess of...
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The obligate halophile, Halobacterium salinarium, maintains a rod-shaped morphology under normal growth conditions. Lactoperoxidase(EC 1.11.1.7;donor:hydrogen-peroxide oxidoreductase)-catalyzed iodination and treatment with proteolytic enzymes were used to demonstrate that the recently described envelope glycoprotein (Mescher, M.F. & Strominger, J.L. (1976) J. Biol. Chem. 251, 2005-2014) is the...
متن کاملFermentative arginine degradation in Halobacterium salinarium (formerly Halobacterium halobium): genes, gene products, and transcripts of the arcRACB gene cluster.
Fermentative growth via the arginine deiminase pathway is mediated by the enzymes arginine deiminase, carbamate kinase, and catabolic ornithine transcarbamylase and by a membrane-bound arginine-ornithine antiporter. Recently we reported the characterization of catabolic ornithine transcarbamylase and the corresponding gene, arcB, from Halobacterium salinarium (formerly Halobacterium halobium). ...
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ژورنال
عنوان ژورنال: Journal of Bacteriology
سال: 1965
ISSN: 0021-9193,1098-5530
DOI: 10.1128/jb.90.4.1159-1160.1965