EC Explorer

4.2.2.1

hyaluronate lyase

Cleaves hyaluronate chains at a β-D-GlcNAc-(1→4)-β-D-GlcA bond, ultimately breaking the polysaccharide down to 3-(4-deoxy-β-D-gluc-4-enuronosyl)-N-acetyl-D-glucosamine.

4.2.2.2

pectate lyase

Eliminative cleavage of (1→4)-α-D-galacturonan to give oligosaccharides with 4-deoxy-α-D-galact-4-enuronosyl groups at their non-reducing ends

4.2.2.3

mannuronate-specific alginate lyase

Eliminative cleavage of alginate to give oligosaccharides with 4-deoxy-α-L-erythro-hex-4-enuronosyl groups at their non-reducing ends and β-D-mannuronate at their reducing end.

4.2.2.4

chondroitin ABC lyase

Eliminative degradation of polysaccharides containing 1,4-β-D-hexosaminyl and 1,3-β-D-glucuronosyl or 1,3-α-L-iduronosyl linkages to disaccharides containing 4-deoxy-β-D-gluc-4-enuronosyl groups

4.2.2.5

chondroitin AC lyase

Eliminative degradation of polysaccharides containing 1,4-β-D-hexosaminyl and 1,3-β-D-glucuronosyl linkages to disaccharides containing 4-deoxy-β-D-gluc-4-enuronosyl groups

4.2.2.6

oligogalacturonide lyase

4-(4-deoxy-α-D-galact-4-enuronosyl)-D-galacturonate = 2 5-dehydro-4-deoxy-D-glucuronate

4.2.2.7

heparin lyase

Eliminative cleavage of polysaccharides containing (1→4)-linked D-glucuronate or L-iduronate residues and (1→4)-α-linked 2-sulfoamino-2-deoxy-6-sulfo-D-glucose residues to give oligosaccharides with terminal 4-deoxy-α-D-gluc-4-enuronosyl groups at their non-reducing ends

4.2.2.8

heparin-sulfate lyase

Elimination of sulfate; appears to act on linkages between N-acetyl-D-glucosamine and uronate. Product is an unsaturated sugar.

4.2.2.9

pectate disaccharide-lyase

(1,4-α-D-galacturonosyl)_n = (1,4-α-D-galacturonosyl)_n-2 + 4-(4-deoxy-α-D-galact-4-enuronosyl)-D-galacturonate

4.2.2.10

pectin lyase

Eliminative cleavage of (1→4)-α-D-galacturonan methyl ester to give oligosaccharides with 4-deoxy-6-O-methyl-α-D-galact-4-enuronosyl groups at their non-reducing ends