5-HTP; 5-hydroxytryptophan; Trp; Tryptophan; W
Indications and Definition
The term is sometimes used interchangeably with the term “tryptophan” and abbreviated “Trp” or “W.” l-Tryptophan is one of the nine essential amino acids available in most protein-based foods. Essential amino acids must be derived from food or supplements. Nonessential amino acids can be synthesized from essential or other nonessential amino acids. During digestion, l-tryptophan is broken down by intestinal bacteria that cause the odor associated with fecal material. The l-isomer from tryptophan contains the organic structural heterocyclic, indole, distinguishing it from tryptophan’s d-isomer. The l-isomer comprises the structure of the protein (IUPAC-IUB-JCBN 1983; l-Tryptophan 2009).
l-Tryptophan can be synthetically and organically derived. Synthetically, it is formulated from the bacterium, Escherichia coli, and the fermentation of serine, a nonessential organic polar amino acid, and indole....
References and Readings
- (IUPAC-IUB) (JCBN) International Union of Pure & Applied Chemistry & International Union of Biochemistry & Molecular (JCBN) Joint Commission on Biochemical Nomenclature. (1983). Nomenclature and symbolism for amino acids and peptides. In: Recommendations on organic and biochemical nomenclature, symbols and terminology. Retrieved February 3, 2009, from http://www.chem.qmul.ac.uk/iupac/AminoAcid.
- 5-Hydroxytryptophan. (2009). In Wikipedia. Retrieved February 3, 2009, from http://en.wikipedia.org/wiki/5-HTP.
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