306 results about "Active site" patented technology

In biology, the active site is the region of an enzyme where substrate molecules bind and undergo a chemical reaction. The active site consists of residues that form temporary bonds with the substrate (binding site) and residues that catalyse a reaction of that substrate (catalytic site). Although the active site is small relative to the whole volume of the enzyme (it only occupies 10~20% of the total volume), it is the most important part of the enzyme as it directly catalyzes the chemical reaction. It usually consists of three to four amino acids, while other amino acids within the protein are required to maintain the protein tertiary structure of the enzyme.