Results 81 to 90 of about 7,892 (182)
pH dependence of the cooperative interactions and conformation of tryptophan oxygenase
Journal of Biological Chemistry, 1975 Allosteric interactions in the cupro-heme enzyme tryptophan oxygenase (EC 1.13.11.11) of Pseudomonas acidovorans are shown to be pH-dependent. Increasing the assay pH from 6.0 to 8.0 progressively desensitizes the enzyme from both homotropic and heterotropic ligand interactions. This pH-dependent reversible transition has a pK of 6.2. Hill coefficients
P D, Colman +3 more
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Role of vitamin B6 on leucine-induced metabolic changes
, 1975 Administration of leucine at 3% level in the diet has been shown to increase tryptophan oxygenase activity and to decrease kynureninase activity in the liver and to increase quinolinic acid excretion in the urine of rats fed low amounts of vitamin B6 (0 ...
Rao, S. B. +2 more
core +1 more source
Copper metabolism in the plaice, Pleuronectes platessa (L.)
, 1982 Copper metabolism in a teleost, the plaice, Pleuronectes platessa (L.) from a natural environment has been studied. Distribution in the various tissues of the metal and of five key copper-dependent enzymes: ceruloplasmin EC 1.16.3.1; Superoxide dismutase
Syed, M.Arif, Coombs, Thomas L.
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, 2008 This investigation addresses the interaction of insulin (INS) and glucocorticoid (GC) signaling in the hepatic regulation of tryptophan oxygenase (TO) enzyme activity in the rat.
Ribarac-Stepić, Nevena B. +3 more
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Kynurenine metabolism in rats: Some hormonal factors affecting enzyme activities [PDF]
, 1975 The effects of certain long-term hormonal treatments of male and female rats on the activities of several enzymes involved in kynurenine synthesis and degradation were determined to further rationalize previously observed sex differences.
Manning, Brenda D., Mason, Merle
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Cancer cachexia and depressive states: a neuro-endocrine-immunological disease?
, 1997 Plasma 5-hydroxytryptamine (serotonin), tryptophan, neopterin and cortisol levels were measured in patients with depressive cancer cachexia and in healthy controls during the same time period.
Iwagaki, Hiromi +5 more
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, 1982 The enzyme tryptophan dioxygenase (E.C.1.13.11.11), found in mammalian liver, catalyzes the initial, irreversible step in the metabolism of the amino acid L-tryptophan i.e. that of addition of molecular oxygen.
WOOD, THOMAS GEORGE
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The effects of a dietary excess of leucine on the synthesis of nicotinamide nucleotides in the rat [PDF]
, 1983 1. In order to test the suggestion that a dietary excess of leucine may be a precipitating factor in pellagra, rats were fed on diets that provided 15 g leucine/kg in excess of requirements for 7 weeks from weaning. This led to a significant reduction in
Bender, DA, Magboul, BI
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, 1974 P(論文)The difference on various enzymic activities and excretion of urinary metabolites of tryptophan in the rat, mouse, guinea pig and rabbit were observed quantitatively.
20873 +17 more
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