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However, what has been overlooked for some time is that the Institute of Medicine's (IOM) Food and Nutrition Board published recommended levels for infants, children and adults for nine indispensable amino acids in its "2002 Dietary Reference Intakes for Macronutrients" report: histidine, isoleucine, leucine, lysine, sulfur-containing amino acids, aromatic amino acids, threonine, tryptophan and valine.
It is the direct precursor to serotonin synthesis via the enzyme aromatic amino acid decarboxylase, which requires vitamin B6 as a cofactor.
Similar trend was observed for TSM where detoxification, especially with alcoholic mixture only, led to an increase in the total, essential, basic and aromatic amino acids (Table 2).
EZ:faast LC/MS kits from Phenomenex have been developed for the analysis of more than 60 aliphatic and aromatic amino acids, dipeptides and related compounds in just under 20 minutes.
Both enzymes are pteridin-dependent aromatic amino acid hydroxylases and are highly homologous, reflecting a common evolutionary origin from a single genetic locus (Cooper et al.
Novo Nordisk A/S (Bagsvaerd, Denmark) has patented insulin precursors and insulin precursor analogs having a mini C-peptide comprising at least one aromatic amino acid residue have an increased folding stability.
Determination of the total essential amino acid (TEAA) to the total amino acid (TAA) (TEAA/TAA); total sulphur amino acid (TSAA); percentage cystine in TSAA (% Cys/TSAA); total aromatic amino acid (TArAA); etc.
The relatively stable foam of beer, for example, results from an interaction between a protein fraction rich in basic and aromatic amino acids and the hop bitter compounds.