Jackbean, soybean and Bacillus pasteurii ureases
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چکیده
منابع مشابه
Effect of soybean ureases on seed germination and plant development
Urease catalyzes the hydrolysis of urea to ammonia and carbon dioxide. The ammonia (nitrogen (N) product of urease activity) is incorporated into organic compounds. Thus, urease is involved in N remobilization, as well as in primary N assimilation. Two urease isoforms have been described for soybean: the embryo-specific, encoded by the Eu1 gene, and the ubiquitous urease, encoded by Eu4. A thir...
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By using natural-abundance (13)C-nuclear magnetic resonance spectroscopy and high-performance liquid chromatography (HPLC) analysis we have investigated the types of compatible solutes that are synthesized de novo in a variety of Bacillus species under high-osmolality growth conditions. Five different patterns of compatible solute production were found among the 13 Bacillus species we studied. ...
متن کاملHelicobacter pylori urease activates blood platelets through a lipoxygenase-mediated pathway
The bacterium Helicobacter pylori causes peptic ulcers and gastric cancer in human beings by mechanisms yet not fully understood. H. pylori produces urease which neutralizes the acidic medium permitting its survival in the stomach. We have previously shown that ureases from jackbean, soybean or Bacillus pasteurii induce blood platelet aggregation independently of their enzyme activity by a path...
متن کاملPlant ureases: roles and regulation.
Both urea and urease were subjects of early scientific investigations. Urea was the first organic molecule to be synthesized and jack bean urease was the first enzyme ever to be crystallized. About 50 years later it was shown to be the first nickel metalloenzyme. Since then, nickel-dependent ureases have been isolated from many bacteria, fungi and higher plants. They have similar structures and...
متن کاملRequirement of an alkaline pH and ammonia for substrate oxidation by Bacillus pasteurii.
Wiley, W. R. (Washington State University, Pullman) and J. L. Stokes. Requirement of an alkaline pH and ammonia for substrate oxidation by Bacillus pasteurii. J. Bacteriol. 84:730-734. 1962-Resting-cell suspensions of Bacillus paseurii require a pH higher than 8.0 and also NH(4) (+) for the oxidation of glycine, alanine, serine, glutamic acid, other amino acids, and compounds of the Krebs cycle...
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ژورنال
عنوان ژورنال: European Journal of Biochemistry
سال: 2004
ISSN: 0014-2956,1432-1033
DOI: 10.1111/j.1432-1033.2004.04046.x