EC 4.2 Carbon-oxygen lyases

This subclass contains enzymes that catalyse the breakage of a carbon-oxygen bond. Sub-subclasses are based on the group that is eliminated: water (hydro-lyases; EC 4.2.1), an alcohol from a polysaccharide (EC 4.2.2), a phosphate (EC 4.2.3), or some other group (EC 4.2.99).