Lexic.us

Definition of Tryptophan

1. Noun. An amino acid that occurs in proteins; is essential for growth and normal metabolism; a precursor of niacin.

Definition of Tryptophan

1. Noun. (amino acid) An essential amino acid having an indole side chain; it is present in many foods, especially chocolate, oats, bananas and milk; it is essential for normal growth and development and is the precursor of serotonin and niacin. ¹

¹ Source: wiktionary.com

Definition of Tryptophan

1. [n -S]

Medical Definition of Tryptophan

1. One of the 20 amino acids found in proteins. Essential dietary component in humans. Precursor of nicotinamide. This entry appears with permission from the Dictionary of Cell and Molecular Biology (11 Mar 2008)

Lexicographical Neighbors of Tryptophan

Literary usage of Tryptophan

Below you will find example usage of this term as found in modern and/or classical literature:

1. Report (1905)
"THE USE OF tryptophan IN CULTURE MEDIA FOR DETECTION OF INDOL PRODUCTION. SF EDWARDS. The object of the investigation was to contribute to our knowledge of ..."

2. Nutrient Composition of Rations for Short-term, High-intensity Combat Operations by Fnb, Institute of Medicine (U. S.), High-stress Situations, Committee on Military Nutrition Research, National Academy of Sciences (2005)
"L-tryptophan however is available in the United States in special dietary ... Consumption of increased levels of L-tryptophan when "balanced" with other ..."

3. Journal of the American Chemical Society by American Chemical Society (1879)
"Received July 31, 1967 Abstract: The quenching of tryptophan fluorescence ... Critical energy transfer distances from tryptophan and tyrosine to the ionized ..."

4. In the Paradise of the Sufis by Javād Nūrbakhsh (1979)
"6.1.1 tryptophan Of the 20 naturally occurring amino acids, tryptophan is the ... As such, tryptophan is thought to be important in the treatment of many ..."

5. The Chemical Constitution of the Proteins by Robert Henry Aders Plimmer (1917)
"Attempts have been made by several investigators to estimate the amount of tryptophan in proteins by colorimetric methods. 1. Levene and Rouiller [1906-07] ..."

6. A Text-book of the Physiological Chemistry of the Animal Body: Including an by Arthur Gamgee (1893)
"tryptophan. We shall by this name2 designate a substance as yet known only by the ... The name tryptophan has been suggested by Neumeister as indicating the ..."

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