Results 221 to 230 of about 161,115 (245)
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British Poultry Science, 1992
1. Three experiments were designed to determine the response of broiler chickens to dietary isoleucine, and to quantify the antagonistic effects of excess leucine and valine on this response. 2. A dilution technique was used to measure the responses in growth rate and food intake to a range of diets differing in their isoleucine concentrations.
D. Burnham, R. M. Gous, G. C. Emmans
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1. Three experiments were designed to determine the response of broiler chickens to dietary isoleucine, and to quantify the antagonistic effects of excess leucine and valine on this response. 2. A dilution technique was used to measure the responses in growth rate and food intake to a range of diets differing in their isoleucine concentrations.
D. Burnham, R. M. Gous, G. C. Emmans
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Isoleucine stereoisomers on the Earth [PDF]
Nature, 1986 The amino acid L-isoleucine (L-Ile) undergoes epimerization at the α-carbon producing D-allo-isoleucine (D-aIle), an amino acid not generally found in living organisms. In fossils and oceanic sediments, this reaction has a half-life, that is, the time required to reach D-aIle/L-Ile ∼0.4, of 105–107 yr (ref. 1).
Spencer Steinberg +3 more
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Memory of Chirality in Diastereoselective α-Alkylation of Isoleucine and allo-Isoleucine Derivatives
Organic Letters, 2000[reaction: see text] alpha-Methylation of 3 gave 5 as a major product whereas 4 gave 6 predominantly, although both 3 and 4 have an (S)-chiral center at C(3). This indicates that chirality at C(2) in 3 and 4 was memorized in the corresponding intermediate enolates and the induced chirality made a major contribution in the stereochemical course of the ...
Kaoru Fuji +6 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
Alan R. Day +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
Alan R. Day +3 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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Isoleucine requirement of pregnant sows1
Journal of Animal Science, 2013The objective of this study was to determine the Ile requirement in early (d 39 to 61) and late (d 89 to 109) pregnancy using the indicator AA oxidation method. The same 7 Large White × Landrace sows in their fourth parity were used in early and late pregnancy.
Jessica K Josephson +4 more
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Isoleucine Requirement of the Growing Pig and Leucine-Isoleucine Interrelationship
Journal of Animal Science, 1976Alain Rérat, P. H. Duee, Y. Henry
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The Isoleucine Requirement of the Infant
The Journal of Nutrition, 1948Virginia I. Davis +5 more
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Studies on the Isoleucine Fermentation
The Journal of Biochemistry, 1962Ichiro Chibata +3 more
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