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tryptophan, tryptophane

Trp; a naturally occurring amino acid, existing in proteins. High levels of intake of d,l-tryptophan are thought to be a significant cause of atypical interstitial pneumonia in cattle. The actual toxic agent is 3-methylindole, a metabolic product of d,l-tryptophan in the rumen.

D, L-tryptophan
component of some roughages; high levels can cause acute bovine pulmonary emphysema and edema.
tryptophan oxygenase
first enzyme in the catabolic pathway for tryptophan. Essential step in the pathway to synthesis of nicotinamide nucleotides NAD+ and NADP+. Approximately 30% of the nicotinamide nucleotide requirement of some animals can be supplied through this enzyme. The cat is notably lacking in the latter capacity.
References in periodicals archive ?
1]) and of poor quality because it is low in the amino acids lysine and tryptophane.
An explanation for this turn of events lies in a cellular protein called tryptophane aspartate--containing coat protein, or TACO.
On tryosine and tryptophane determination in proteins.
The sixteen chapters in the text are headed: Discovery of high lysine, high tryptophane cereals; Corn protein - genetics, breeding and value in foods and feeds; Quality protein maize - what is it and how was it developed?
Both milk and cream, whether 'au naturel' or vegetable product contain significant amounts of Tryptophane, an amino acid which promotes sleep.
Taking into account special medico-biological significance of free amino acids in functional products, researchers estimated the degree of impact of L-amino acids mix (leucine, isoleucine, valine, arginine, lysine, threonine, tryptophane, histidine, alanine, proline, serine, glycine) together with bacterial agent PBK-BR on uncooked smoked sausages, as well as impact of hydrolysates of hydrobionts and starter culture PB-MP on the quantitative content of free amino acids in restructured ham products.
Effects of tyrosine and tryptophane ingestion on plasma catecholamine and 3, 4,-di hydroxyphenylacetic acid concentrations.
CaM protein does not contain easily oxidized, peptide-chains fixed components such as cysteine, hydroxyproline, and tryptophane.