منابع مشابه
Fermentative production of ophthalmic acid
Research aims Escherichia coli YggS is a highly conserved pyridoxal phosphate (PLP)-binding protein whose biochemical function is unknown. We found that a yggS-deficient E. coli s t ra in (ΔyggS ) accumulates an unusual metabol i te , ophthalmic ac id (γ-L-glutamyl-L-2-aminobutyryl-glycine, Fig. 1). This ∆yggS mutant is the first microorganism that accumulates high levels of ophthalmic acid. Op...
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Butanol is an aliphatic saturated alcohol having the molecular formula of C(4)H(9)OH. Butanol can be used as an intermediate in chemical synthesis and as a solvent for a wide variety of chemical and textile industry applications. Moreover, butanol has been considered as a potential fuel or fuel additive. Biological production of butanol (with acetone and ethanol) was one of the largest industri...
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As a result of impressive progress that made in economic traits such as body weight gain, feed efficiency and breast yield to meet the demands of consumers, nowadays, poultry became more susceptible to obesity, stressors and less ability to resist the common diseases in commercial farms. L-Arginine (L-Arg) supplementation in poultry diets improves egg production, egg weight, modulates lipid met...
متن کاملProduction of L-arginine by arginine hydroxamate-resistant mutants of Bacillus subtilis.
l-Arginine hydroxamate inhibited the growth of various bacteria, and the inhibition was readily reversed by arginine. l-Arginine hydroxamate (10(-3)m) completely inhibited the growth of Bacillus subtilis. This inhibitory effect was prevented by 2.5 x 10(-4)ml-arginine, which was the most effective of all the natural amino acids in reversing the inhibition. l-Arginine hydroxamate-resistant mutan...
متن کاملFermentative production of L-alanyl-L-glutamine by a metabolically engineered Escherichia coli strain expressing L-amino acid alpha-ligase.
In spite of its clinical and nutritional importance, l-alanyl-l-glutamine (Ala-Gln) has not been widely used due to the absence of an efficient manufacturing method. Here, we present a novel method for the fermentative production of Ala-Gln using an Escherichia coli strain expressing l-amino acid alpha-ligase (Lal), which catalyzes the formation of dipeptides by combining two amino acids in an ...
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ژورنال
عنوان ژورنال: Agricultural and Biological Chemistry
سال: 1972
ISSN: 0002-1369,1881-1280
DOI: 10.1271/bbb1961.36.1675