Tryptophan is an essential amino acid that plays a role in the production of serotonin, melatonin, niacin, and nicotinamide. Learn which foods to eat to get more tryptophan.

Tryptophan, in comparison, has a complex structure and is comparatively rare in the protein code, like a Y or Z, leading scientists to theorize that it was one of the latest additions to the code.

Tryptophan is a naturally occurring amino acid found in many foods. We explain what it does, how it impacts your health, and what to know about supplements.

Figure 1: Biosynthetic gene cluster and structure of streptide. Figure 4: StrB catalyses Lys-to-Trp crosslink formation in StrA. Figure 5: Mechanistic model for Lys-to-Trp crosslink formation ...

L-tryptophan is an essential amino acid that helps the body make proteins and certain brain-signaling chemicals. Your body changes L-tryptophan into a brain chemical called serotonin. Serotonin ...

Tryptophan is the only amino acid with a side chain possessing two hydrocarbon (hydrogen–carbon) rings fused together to make a larger flat structure called an indole. As such, tryptophan ...

Tryptophan is one of the 20 amino acids considered essential for the formation of proteins, which are key macromolecules for the development of life on Earth. This amino acid has many spectral ...

It may be an essential amino acid, but tryptophan has a concerning connection to arthritis. Now, researchers from the University of Colorado say they have identified the means in which bacteria in the ...

Tryptophan is the rarest of the 20 canonical amino acids, accounting for just 1% of amino acids in proteins. It’s also the only amino acid with a side chain that features indole, which is made ...