Results 301 to 310 of about 183,864 (337)
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Inhibition of Escherichia coli isoleucine biosynthesis by isoleucine tetrazole
Journal of Bacteriology, 1975Growth of a derivative of Escherichia coli K-10 was strongly inhibited by 2 times 10(-4) M L-5(1-amino-2-methylbutyl)-tetrazole (isoleucine tetrazole). Growth inhibition was reversed by isoleucine, threonine, glycyl-L-isoleucine, or glycyl-L-threonine, and, in a valine-resistant mutant, by L-valine.
G A, Willshaw, H, Tristram
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Isoleucine and Allo-isoleucine
Nature, 1958DURING our investigations on amino-acid analysis on ion exchange resins using Moore and Stein's method1, it was seen that in a synthetic mixture of 13 amino-acids (Hoffmann-LaRoche, mostly in the l-configuration) the ‘methionine’ recovery was always too high (120–150 per cent of the theoretical amount) and the ‘isoleucine’ recovery always too low (65 ...
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Glial Metabolism of Isoleucine
Neurochemical Research, 2008Isoleucine, together with leucine and valine, constitutes the group of branched-chain amino acids (BCAAs). BCAAs are transported from the blood into the brain parenchyma, where they can serve several distinct functions. Since brain tissue is known to oxidatively metabolize BCAAs to CO(2), they are considered as fuel material in brain energy metabolism.
Radovan, Murín +3 more
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Biological availability of isoleucine
Archives of Biochemistry and Biophysics, 1957Abstract Biological availability of isoleucine in eight different proteins was determined using a blood meal diet low in isoleucine. Isoleucine in zein was available to the extent of 30%; in casein and gelatin, around 60–70%; and in fibrin, beef, egg albumin, and Drackett, over 90% of the isoleucine was available to the rat.
P D, DESHPANDE +3 more
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Journal of Medicinal Chemistry, 1979
Three bradykinin analogues have been synthesized in which the phenylalanine residue(s) at positions 5 and/or 8 have been substituted by isoleucine. All these analogues have weak bradykinin-like activity in isolated rat uterine smooth muscle or in rat blood pressure assay. No antagonistic activity was observed with any of these analogues. The importance
A T, Chiu +3 more
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Three bradykinin analogues have been synthesized in which the phenylalanine residue(s) at positions 5 and/or 8 have been substituted by isoleucine. All these analogues have weak bradykinin-like activity in isolated rat uterine smooth muscle or in rat blood pressure assay. No antagonistic activity was observed with any of these analogues. The importance
A T, Chiu +3 more
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Isoleucine production in bifidobacteria
European Journal Of Applied Microbiology, 1976About 300 strains of bifidobacteria were examined for their capacity to release L-isoleucine in the fermentation broth. A strain of the speciesBifidobacterium ruminale was selected as the best producer. After treatment of this strain with NTG a DL-α-aminobutyric acid-resistant mutant capable of producing about 5 mg/ml of L-isoleucine in presence of 1.5
D. Matteuzzi +4 more
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Regulation of Isoleucine and Valine Biosynthesis
1978Publisher Summary This chapter discusses the regulation of isoleucine and valine biosynthesis. Isoleucine and valine biosynthesis is a model system for the study of mechanisms by which the cell coordinates different parts of its total metabolism. Threonine deaminase is the first enzyme in isoleucine biosynthesis.
Iaccarino M. +3 more
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Methionine, Valine And Isoleucine
American Journal of Diseases of Children, 1964Knowledge of the requirements for essential amino acids during infancy has been derived largely from short-term studies of weight gain and nitrogen balance of infants fed mixtures of 18L-amino acids. 1 As indicated by Holt and Snyderman in 1961, 1 such studies are not necessarily predictive of the requirements for essential amino acids by infants fed ...
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