(biochemistry) 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.

Alternative form of tryptophan

plural of tryptophan

(organic chemistry) Any salt or ester of tryptophan

plural of tryptophanate

plural of tryptophane

(biochemistry) An enzyme found in plants and bacteria, but not in animals, which catalyses the final step in the biosynthesis of tryptophan.

(biochemistry) An enzyme found in plants and bacteria, but not in animals, which catalyses the final step in the biosynthesis of tryptophan.

(organic chemistry, especially in combination) The univalent radical derived from tryptophan.

(biochemistry) A lyase enzyme that catalyzes the chemical reaction L-tryptophan + H₂O ⇌ indole + pyruvate + NH₃.