Biochemistry 9.4: Enzyme classification

A quick romp through oxidoreductases, transferases, hydrolases, lyases, isomerases and ligases.

NEWS: As of 2018, a 7th class has been introduced, the first new category since the 1960s.
From https://www.enzyme-database.org/news....
EC 7 are "enzymes that catalyse the movement of ions or molecules across membranes or their separation within membranes. Several of these involve the hydrolysis of ATP and had been previously classified as ATPases (EC 3.6.3.-), although the hydrolytic reaction is not their primary function."