tryptophan
organic compound, one of the 20 amino acids commonly found in animal proteins. Only the l -stereoisomer appears in mammalian protein. It is one of several essential amino acids needed in the diet; human beings cannot synthesize it from simpler metabolites. Young adults require about 7 mg of this amino acid per day per kg (3 mg per lb) of body weight. Nicotinic acid (niacin), a vitamin of the B complex, can be made from tryptophan in the body, but evidently the rate of transformation is insufficient for the demands of normal growth and maintenance, and hence nicotinic acid must be supplied in the diet. Deficiency of tryptophan in the diet enhances the progress of the vitamin-deficiency disease pellagra , which is treated by restoring nicotinic acid to the diet, usually supplemented with tryptophan. Bacteria in the intestine break tryptophan down to compounds such as skatole and indole, which to a great extent are responsible for the unpleasant odor of feces. Tryptophan contributes to the structure of proteins into which it has been incorporated by the tendency of its side chain to participate in hydrophobic interactions (see isoleucine ). The amino acid was isolated from casein (milk protein) in 1901, and its structure was established in 1907.
The Urban Dictionary Mug
Great idea. Nice mug and well proportioned
Im gay so love this mug
shmunky Mug is elite!!!!!!!!!!!!!!!!! Highly recommend yeat !!!!
Great product. Timely shipping. Highly recommend this establishment. Thanks!
Best Mug ever. I love having the definition for my favorite word on a stylish mug. -ShinobiScout
It was hilarious and I loved it
bloody fantastic. yes you found a real review that isn't from a bot!
So funny and fun to share. Great gift
I have a persona/troll character on Roblox named: HaunCoolGamer, I bought this bc the actual definition of Haun totally fits Haun's brand.😎 10/10: Very epic.
sicko mode mug bought this, great mug. would recommend to friends
Good quality, not cheesy.
It’s an awesome mug
it's great get it with the definition of your b and make it cuteee
Great as punctuation to an inside joke. Very expensive for a coffee cup.
Excellent communication. Prompt service. Quality product.
my friend loves funky monkey mug
Great idea to be able to offer this quality mug. I wish it would have come with the full text including examples listed on Urban Dictionary but I do love the mug. Just bought my 2nd one. Packaging is duarable and perfect for rough transit.
¡Soy profesora de español y lo voy a usar en mi clase en la universidad!
I wish the text on the back wasn’t so small—if I had to order it over again I would’ve inquired as to whether the words could be enlarged so it filled up more of the “white space” on the back
You guys are fantastic! Will continue to do business with you. Thank you so very much.
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