. "The enzyme from the bacterium Sphingomonas sp. strain A1 cleaves alginate producing di-and trisaccharides with an unsaturated uronyl residue at the non-reducing terminus." . . . "Poly(beta-D-mannuronate) lyase" . "Alginate lyase I" . "Poly(mana) alginate lyase" . . "Eliminative cleavage of polysaccharides containing beta-D-mannuronate residues to give oligosaccharides with 4-deoxy-alpha-L-erythro-hex-4-enopyranuronosyl groups at their non-reducing ends." .