Tryptophan is an essential amino acid that helps your body produce melatonin and serotonin. However, it's not why you feel tired after a large meal.

These chains come in a wide range of lengths. In humans a typical protein is about 400 amino acids long; some are a lot longer. Molecules of RNA, one of the two nucleic acids, can reach up to 100,000 ...

Protein is having a moment. But even if most people are eating enough protein, studies suggest they may not be eating the right mix.

FGF basic is a member of the FGF family, which includes at least 23 related mitogenic proteins sharing 35–60% amino acid conservation. Unlike most other FGFs, FGF acidic and FGF basic lack signal ...

When a bone grows, our bodies’ proteins help provide the structure. When a muscle tears, proteins help rebuild it. When we fight an infection, transport oxygen in our blood or send messages to a cell, ...

A new machine learning method has achieved what even AlphaFold cannot — the design of intrinsically disordered proteins (IDPs), the shape-shifting biomolecules that make up nearly 30% of all human ...