. "Proteins (/\u02C8pro\u028A\u02CCti\u02D0nz/ or /\u02C8pro\u028Ati.\u0268nz/) are large biomolecules, or macromolecules, consisting of one or more long chains of amino acid residues. Proteins perform a vast array of functions within living organisms, including catalyzing metabolic reactions, DNA replication, responding to stimuli, and transporting molecules from one location to another."@en . .