Results 151 to 160 of about 306,090 (270)

Serial Analysis of Tryptophan Degradation and Neopterin Formation in an otherwise Healthy Individual before and during an Infectious Episode

open access: yesPteridines, 2006
Thl-type cytokine interferon-y induces neopterin production in human monocyte-derived macrophages and it stimulates enzyme indoleamine (2,3)-dioxygenase (IDO) which converts tryptophan to kynurenine in various cells.
Huber Leonhard   +5 more
doaj   +1 more source

Bioavailability of threonine and tryptophan in peanut meal for starter pigs using slope-ratio assay

open access: yesAnimal, 2009
The objective of the two studies was to determine the bioavailability of threonine (thr) and tryptophan (trp) in peanut meal, relative to l-thr and l-trp, for starter pigs using the slope-ratio bioassay. Basal diets (BDs) contained surfeit amounts of all
O. Adeola
doaj  

Tryptophan Metabolites as Scavengers of Reactive Oxygen and Chlorine Species

open access: yesPteridines, 2002
Upon stimulation with interferon-γ, a typical Thl cell-derived cytokine, human monocyte-dertved macrophages produce neopterin derivatives and in parallel degrade the essential amino acid L-tryptophan to L-kynurenine and subsequently to 3 ...
Weiss Günter   +4 more
doaj   +1 more source

From the Wobble to Reliable Hypothesis [PDF]

open access: yesarXiv, 2009
A simple explanation for the symmetry and degeneracy of the genetic code has been suggested. An alternative to the wobble hypothesis has been proposed. This hypothesis offers explanations for: i) the difference between thymine and uracil, ii) encoding of tryptophan by only one codon, iii) why E.
arxiv  

THE BACTERIAL OXIDATION OF TRYPTOPHAN III [PDF]

open access: bronze, 1951
Osamu Hayaishi, Roger Y. Stanier
openalex   +1 more source

Lagerkvist versus Crick [PDF]

open access: yesarXiv, 2013
Present day data allow significant reconsideration of ideas on mechanisms underlying the degeneracy in the genetic code. Here a hypothesis is presented which links the degeneracy to possible conformational alterations in the codon-anticodon duplex. This enables explanation of Rumer symmetry in the table of the genetic code, coding of methionine and ...
arxiv  

Studies of Tryptophans in Membrane- Spanning WALP Peptides by Deuterium NMR Spectroscopy [PDF]

open access: yes, 2000
WALP pep tides of sequence acetyl-Gly-Trp-Trp-(Leu-Ala)-Trp-Trp-Ala-ethanolamine insert into lipid bilayers as membrane-spanning a-helices and modulate the lipid phase behavior as functions of n and the lipid acyl chain length.
Reed, Nichole
core   +2 more sources

TRYPTOPHAN METABOLISM

open access: hybrid, 1949
Charles Heidelberger   +2 more
openalex   +2 more sources

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