منابع مشابه
Urea-hydrolyzing Vibrio parahaemolyticus associated with acute gastroenteritis.
A case of gastroenteritis caused by a urea-hydrolyzing strain of Vibrio parahaemolyticus is presented. Urea-hydrolyzing strains of Vibrio parahaemolyticus have rarely been reported and have not been described previously as a cause of gastroenteritis in the United States. With the exception of urea hydrolysis and the methyl red test, the isolate had all the characteristics of V. parahaemolyticus...
متن کاملLuminometric single step urea assay using ATP-hydrolyzing urease.
An automatic enzyme kinetic luminometric method for determination of small quantities of urea in biological fluids and in microdialysates is presented. The method is based on the ATP-hydrolyzing urease reaction [urea amidohydrolase (ATP-hydrolyzing); EC 3.5.1.45], monitored by a luciferin-luciferase ATP reaction. The assay range is 100 pmol to 50 nmol with a detection limit of 5 micromol/L in t...
متن کاملPurification and characterization of a methylene urea-hydrolyzing enzyme from Rhizobium radiobacter (Agrobacterium tumefaciens)
Slow-release fertilizers are gaining acceptance to increase fertilizer use efficiency and reduce environmental impact. The release of nitrogen from methylene urea, a common slow release N fertilizer, is controlled by microbial decomposition. An enzyme hydrolyzing slowrelease nitrogen fertilizer, methylene urea, was purified from Rhizobium radiobacter (Agrobacterium tumefaciens) to homogeneity u...
متن کاملTopoisomerase II drives DNA transport by hydrolyzing one ATP.
DNA topoisomerase II is a homodimeric molecular machine that couples ATP usage to the transport of one DNA segment through a transient break in another segment. In the presence of a nonhydrolyzable ATP analog, the enzyme is known to promote a single turnover of DNA transport. Current models for the enzyme's mechanism based on this result have hydrolysis of two ATPs as the last step, used only t...
متن کاملComparative biochemistry of urea synthesis. II. Levels of urea cycle enzymes in metamorphosing Rana catesbeiana tadpoles.
Among the various physiological-biochemical changes associated with the invasion of land from an aquatic environment is that dealing with the nature of the nitrogen excretion product of protein and amino acid catabolism. In general terms (l-4), the excretion of ammonia (ammonotelism), urea (ureotelism), or uric acid (uricotelism) is related to the availability of water to an organism. Ammonia c...
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ژورنال
عنوان ژورنال: Journal of Bacteriology
سال: 1956
ISSN: 0021-9193,1098-5530
DOI: 10.1128/jb.71.6.655-660.1956