منابع مشابه
Biomedical aspects of pyridoxal 5'-phosphate availability.
The biologically active form of vitamin B6, pyridoxal 5'-phosphate (PLP), is a cofactor in over 160 enzyme activities involved in a number of metabolic pathways, including neurotransmitter synthesis and degradation. In humans, PLP is recycled from food and from degraded PLP-dependent enzymes in a salvage pathway requiring the action of pyridoxal kinase, pyridoxine 5'-phosphate oxidase and phosp...
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Both the gradual rise in atmospheric oxygen over the Proterozoic Eon as well as episodic fluctuations in oxygen over several million-year time spans during the Phanerozoic Era, have arguably exerted strong selective forces on cellular and organismic respiratory specialization and evolution. The rise in atmospheric oxygen, some 2 billion years after the origin of life, dramatically altered cell ...
متن کاملAmino acid availability: aspects of chemical analysis and bioassay methodology.
It is important to be able to characterise foods and feedstuffs according to their available amino acid contents. This involves being able to determine amino acids chemically and the conduct of bioassays to determine amino acid digestibility and availability. The chemical analysis of amino acids is not straightforward and meticulousness is required to achieve consistent results. In particular a...
متن کاملAvailability and performance aspects for mainframe consolidated servers
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ژورنال
عنوان ژورنال: Science of Computer Programming
سال: 2010
ISSN: 0167-6423
DOI: 10.1016/j.scico.2009.10.002