The defining feature of an amino acid is its side chain (at top, blue circle; below, all colored circles). When connected together by a series of peptide bonds, amino acids form a polypeptide ...

Each protein is a molecule made up of different combinations of 20 types of smaller, simpler amino acids. Protein molecules are long chains of amino acids that are folded into a three-dimensional ...

The sequence of amino acids in the chain determines how the chain will fold up to make the protein, so different proteins have different three-dimensional shapes. The three-dimensional shape of a ...

BCAAs, short for branch-chain amino acids, are three types of essential amino acids. BCAA benefits include reduced fatigue, muscle soreness, and helping with weight loss. Use a BCAA supplement ...

Proteins are the building blocks of life. They consist of folded peptide chains, which in turn are made up of a series of amino acids. From stabilizing cell structure to catalyzing chemical reactions, ...

Why do problems occur with a special variant of 'protein glues', the split inteins, that severely limit their use in producing proteins? A team has now answered this question.