A group of carbon-oxygen lyases. These enzymes catalyze the breakage of a carbon-oxygen bond in polysaccharides leading to an unsaturated product and the elimination of an alcohol. EC 4.2.2.

Synonyms: Polysaccharide Lyases, Polysaccharide Lyase, EC 4.2.2.-, Lyase, Polysaccharide, Polysaccharide-Lyase, Polysaccharide-Lyases