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Publikováno v:
Journal of Biological Chemistry. 260:5415-5419
The properties of the Bacillus subtilis RNase P are characterized with regard to the types and concentrations of monovalent and divalent ions required to potentiate precursor tRNA cleavage by the protein-RNA holoenzyme and the catalytic RNA alone. Th
Publikováno v:
Journal of Biological Chemistry. 249:4473-4479
The interrelationships between the 3-deoxy-d-arabinoheptulosonate 7-phosphate (DAHP) synthetase-chorismate mutase enzyme and shikimate kinase were studied. Attempts were made to distinguish between the various catalytic and regulatory activities of t
Autor:
Murray P. Deutscher
Publikováno v:
Journal of Biological Chemistry. 242:1123-1131
The properties of glutamyl ribonucleic acid synthetase purified from rat liver were investigated. The pH optimum for glutamyl-RNA formation was about 6.8. The apparent Km values for glutamate, adenosine triphosphate, Mg++, and soluble RNA in the form
Publikováno v:
Journal of Biological Chemistry. 247:5972-5979
A bifunctional enzyme complex consisting of 3-deoxy-d-arabino-heptulosonate-7-phosphate (DAHP) synthetase and chorismate mutase in strain 168 of Bacillus subtilis has been purified to near homogeneity by conventional purification procedures. A major
Publikováno v:
Journal of Biological Chemistry. 248:3122-3130
An enzyme from Bacillus subtilis which catalyzes the hydrolysis of UDP-MurNAc-pentapeptide to UDP-MurNAc-tripeptide and dalanyl-d-alanine has been purified. Heat-stable cofactors required for the hydrolysis were identified as Co++, ADP, and inorganic
Publikováno v:
Journal of Biological Chemistry. 240:1131-1134
Publikováno v:
Journal of Biological Chemistry. 245:3536-3544
Two enzymes in the pathway of l-histidine degradation were partially purified from extracts of Bacillus subtilis grown on l-histidine. Urocanase, the enzyme catalyzing the conversion of urocanate to 4-imidazolone-5-propionate, has a molecular weight
Publikováno v:
Journal of Biological Chemistry. 247:2145-2150
The sources of oxygen in the phosphoryl moieties of the intracellular nucleotides and RNA under several conditions were examined with Bacillus subtilis and Escherichia coli. Oxygens of nucleotides and RNA are representative of those of the intracellu
Autor:
H. Edwin Umbarger, G. Wesley Hatfield
Publikováno v:
Journal of Biological Chemistry. 245:1736-1741
Threonine deaminase (l-threonine hydro-lyase (deaminating), EC 4.2.1.16) from Bacillus subtilis catalyzes the deamination of threonine at a constant rate upon addition of substrate. In the presence of isoleucine, the reaction begins slowly and increa
Autor:
Roy A. Jensen, W. Scott Champney
Publikováno v:
Journal of Biological Chemistry. 245:3763-3770
Prephenate dehydrogenase (prephenate:NAD oxido-reductase (decarboxylating)) was examined in crude extracts of strains 168 and 23 of Bacillus subtilis by using a fluorometric assay procedure. Both strains had prephenate dehydrogenases with similar kin