Tryptophan Wiki - What is the tryptophan?
Tryptophan (symbol Trp or W) is an α-amino acid that is used in the biosynthesis of proteins. Tryptophan contains an α-amino group, an α-carboxylic acid group, and a side chain indole, making it a non-polar aromatic amino acid. It is essential in humans, meaning the body cannot synthesize it: it must be obtained from the diet. Tryptophan is also a precursor to the neurotransmitter serotonin, the hormone melatonin and vitamin B3. It is encoded by the codon UGG. Like other amino acids, tryptophan is a zwitterion at physiological pH where the amino group is protonated (–NH3+; pKa = 9.39) and the carboxylic acid is deprotonated ( –COO−; pKa = 2.38)..
What does the word tryptophan mean? Find synonyms, antonyms and the meaning of the word tryptophan in our free online dictionary! Find words starting with tryptophan and anagrams of tryptophan.
Definitions of "tryptophan"
- An essential amino acid, C11H12N2O2, formed from proteins during digestion by the action of proteolytic enzymes. It is necessary for normal growth and development and is the precursor of several substances, including serotonin and niacin. noun
- 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; any specific form of this compound, or any derivative of it. noun
- Same as proteinochromogen. noun
- an amino acid that occurs in proteins; is essential for growth and normal metabolism; a precursor of niacin noun
The word "tryptophan" in example sentences
In plants, the tryptophan is produced endogenously where in animals the tryptophan used comes from diet.. [Enterprising chemistry majors at Georgetown]
This is because bananas contain tryptophan, a type of protein that the body converts into serotonin, known to make you relax, improve your mood and generally make you feel happier.. [20 Fascinating Facts About the Natural Healing Power of Bananas]
To make matters more interesting, tryptophan is present in many protein-rich foods, which have been found to prevent serotonin production.. [Lactose Makes You Sleepy?]
This Cambridge biochemist was already well known for having isolated the amino acid tryptophan from a protein and demonstrated its essential nature.. [The Nobel Prize and the Discovery of Vitamins]
It might be pointed out here that kynurenine has since been recognized to occupy a central position in tryptophan metabolism in many organisms aside from insects, including mammals and fungi.. [Edward Tatum - Nobel Lecture]
-0/+2its surprising to hear the word tryptophan without an ignorant remark about how sleepy it makes you. dugg for that alone. just now, -0/+0Slightly inaccurate about turkeys flying.. [Original Signal - Transmitting Digg]
It is similar to tryptophan, which is the amino acid that gets converted into serotonin—5-HTP is the intermediate step in that process.. [The Chemistry of Calm]
Here's a brief explanation of the mechanism behind the effect of food on serotonin levels: after consumption of a carbohydrate-rich meal, the hormone insulin is secreted, which causes a lowering of the blood levels of most amino acids (the building blocks of protein), with the exception of tryptophan, which is a precursor to serotonin.. [Lactose Makes You Sleepy?]
-- Ronald Duffy, Santa Fe, N. M.There is no nutritional difference between warm and cold cow's milk -- and both contain the amino acid tryptophan, which is known to have sedative effects.. [Ask Tip Sheet]
Turkey contains an amino acid called tryptophan that can make you feel a little tired.. [CNN Transcript Nov 27, 2004]
The characteristic odor of intestinal flatus, like that of the feces, is due mainly to skatol, a crystalline compound produced when bacteria break down the amino acid tryptophan, which is found in proteins.. [THE NATURAL REMEDY BIBLE]
Restricting an essential amino acid called tryptophan from the diet was found in a 1983 study to help improve asthma symptoms see p.. [The Best Alternative Medicine]
Bananas: ripe bananas are very rich in potassium, sodium and magnesium, all of which restore health and balance to nutritionally exhausted nervous systems; also rich in the amino acid tryptophan, which is known to promote sleep.. [The Tao of Health, Sex and Longevity]
Which may explain why, for awhile, the Guinness World Records folks ignored tobacco and called tryptophan the king.. [NPR Topics: News]
But, paradoxically, one particular amino acid (a building-block of protein), called tryptophan, produces serotonin.. [Latest articles - Homemakers]
IDO interferes with immune function in several ways: by depleting the amino acid tryptophan, which is critical for immune cell activation and growth; by increasing the local concentration of tryptophan metabolites, which are toxic to the immune cells; and by increasing the levels of regulatory T cells, which further suppress the immune response.. [Incyte CEO Discusses Q3 2010 Results - Earnings Call Transcript -- Seeking Alpha]
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