Uric acid is an Analyte. Excess uric ─ hyperuricemia leads to gout and renal stones. Frabot noted that added alkaline tungstate solution developed intense blue colour. A colorimetric method widely utilized quantify depends on the reduction of chromogen sodium by produce a measurable colour change. The reaction route from initial products coloured compounds oxido-degradation organic substance ha...

Soybean plants can fix atmospheric N2 in the root nodule, a symbiotic organ with rhizobia. The primary forms of N transported from fixation are ureides, allantoate, and allantoin, supplemented asparagine. nitrate absorbed roots is to shoots NO3− asparagine little portion ureides. concentrations N-metabolites were analyzed by capillary electrophoresis after supplying various urea, precursors all...

Urinary allantoin excretion as a measure of microbial protein production, has been shown to be responsive to ruminal nitrogen (N) supply (Balcells et al. 1993). Dietary phosphorus (P) deficiency has also been observed to reduce microbial protein flow (Gunn and Ternouth 1994). The aim of this experiment was to examine the effects of P and N deficiencies upon microbial protein formation, as deter...

Search for the biological sources of the ureide carbon atoms of uric acid has centered chiefly around compounds similar in structure to the ureide group of uric acid. One of the earliest studies on the precursors of uric acid was made by Wiener (3), who postulated that uric acid was formed by the condensation of 2 moles of urea with 1 of tartronic acid. Although this hypothesis was at first att...

We have isolated a second gene (MLS1), which in addition to DAL7, encodes malate synthase from S. cerevisiae. Expression of the two genes is specific for their physiological roles in carbon and nitrogen metabolism. Expression of MLS1, which participates in the utilization of non-fermentable carbon sources, is sensitive to carbon catabolite repression, but nearly insensitive to nitrogen cataboli...