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Tryptophan

Synonym(s)

  • L-tryptophan
  • Trp

Definition(s)

Amino acid with side chain -CH2C8H6N.

Definition from: NCI via Unified Medical Language SystemThis link leads to a site outside Genetics Home Reference. at the National Library of Medicine

The least plentiful of all 22 amino acids and an essential amino acid in humans (provided by food), Tryptophan is found in most proteins and a precursor of serotonin. Tryptophan is converted to 5-hydroxy-tryptophan (5-HTP), converted in turn to serotonin, a neurotransmitter essential in regulating appetite, sleep, mood, and pain. Tryptophan is a natural sedative and present in dairy products, meats, brown rice, fish, and soybeans.

Definition from: NCI via Unified Medical Language SystemThis link leads to a site outside Genetics Home Reference. at the National Library of Medicine

Essential amino acid necessary for normal growth in infants, nitrogen balance in adults; seretonin precursor.

Definition from: CRISP Thesaurus via Unified Medical Language SystemThis link leads to a site outside Genetics Home Reference. at the National Library of Medicine

See also Understanding Medical Terminology.

 
Published: June 29, 2015