Tryptophan, denoted by the symbol Trp or W, is an α-amino acid involved in protein biosynthesis. It consists of an α-amino group, an α-carboxylic acid group, and a side chain known as indole. This molecular structure renders tryptophan a polar molecule with a non-polar aromatic beta carbon substituent.Beyond its role in protein synthesis, tryptophan serves as a precursor for several important compounds. It acts as a precursor for the neurotransmitter serotonin, which plays a crucial role in the regulation of mood, sleep, and appetite. Additionally, tryptophan is a precursor for the hormone melatonin, involved in the regulation of the sleep-wake cycle. Furthermore, tryptophan contributes to the synthesis of vitamin B3 (niacin), an essential nutrient.The genetic code encodes tryptophan using the codon UGG.

Structure
CAS Number 73-22-3
Classification

Hydrophobic amino acids (nonpolar amino acids), including

Phenylalanine

Alanine

Leucine

Methionine

Isoleucine

Tryptophan

Proline

Valine

Categories
Tryptophan Biosynthesis Related Compounds
617-12-9 Chorismate
118-92-3 Anthranilate
N-(5-Phospho-D-ribosyl)anthranilate
1-(2-Carboxyphenylamino)-1'-deoxy-D-ribulose 5'-phosphate
Indoleglycerol phosphate
73-22-3 L-Tryptophan

Tryptophan and Derivatives:

Tryptophan:

Derivatives: