Tryptophan ELISA kits are assays designed to detect the alpha amino acid tryptophan. The molecule is polar, non-aromatic, and essential amino acid that is used for the synthesis of many proteins. It acts as a precursor to other compounds such as the neurotransmitter serotonin, niacin/vitamin B3, and the hormone melatonin. Tryptophan has been associated with therapies for anxiety, depression, insomnia and behavioral disorders. Visit the supplier page for more information about detection target, range and reactivity.