Minimizing Amino Acid Catabolism Decreases Amino Acid Requirements
نویسندگان
چکیده
منابع مشابه
Minimizing amino acid catabolism decreases amino acid requirements.
The processes of natural selection shape the efficiency of nutrient use by animals, with some being especially thrifty while others are wasteful. An examination of the widely divergent amino acid economies of different species vividly illustrates this basic nutritional principle. The domestic cat evolved as a carnivore and has a very high maintenance requirement for dietary amino acids. The cat...
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It is proposed to look, not at absolute requirements, but rather at the optimum pattern of essential amino acids (EAA) needed and the optimum value for the ratio EAA:total useful crude protein supply (CP; Nx6.25) when the supply is adequate but not excessive. For monogastric mammals and poultry it is clearly of practical value to try to assess requirements in the diet’. However, results may var...
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The special features of nitrogen metabolism in ruminants, which stem from the extensive breakdown and synthesis of dietary protein in the rumen (see Hungate, 1966), imply the absence of a specific dietary requirement for essential amino acids. Nevertheless, there is considerable theoretical and practical interest in defining the amino acid requirements of ruminant tissues in animals of known nu...
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Catabolism of the branched-chain amino acids is regulated in part at the step catalyzed by the branched-chain alpha-ketoacid dehydrogenase complex. Previous work suggests both short-term and long-term control mechanisms are involved in regulation of the kinase responsible for phosphorylation and inactivation of the branched-chain alpha-ketoacid dehydrogenase complex. Recent work of this laborat...
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The enzymatic conversions necessary for the catabolism of branched-chain amino acids have been reported to occur in a wide variety of bacteria. However, most studies have been done using several species of Pseudomonas. Pseudomonads are richly endowed with extraordinary nutritional versatility, which enables them to catabolize a diverse array of organic compounds (64), including the branchedchai...
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ژورنال
عنوان ژورنال: The Journal of Nutrition
سال: 2008
ISSN: 0022-3166,1541-6100
DOI: 10.3945/jn.108.099341