Ligasebiochemistry, a ligase is an enzyme that can catalyse the joining of two molecules ("ligation" or "glue together") by forming a new chemical bond, with concomitant hydrolysis of ATP or other similar molecules. They are classified as EC 6 in the EC number classification. Many ligases are also known as "synthases" or "synthetases" because they synthesize new molecules.
This article is a stub. You can help Wikipedia by [ expanding it].