EC - Hyaluronate lyase

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IntEnz Enzyme Nomenclature


Accepted name:
hyaluronate lyase
Other names:
glucuronoglycosaminoglycan lyase [ambiguous]
mucinase [ambiguous]
spreading factor
hyaluronidase [ambiguous]
Systematic name:
hyaluronate lyase



The enzyme catalyses the degradation of hyaluronan by a β-elimination reaction. Also acts on chondroitin. Formerly EC The product is more systematically known as 3-(4-deoxy-α-L-threo-hex-4-enopyranosyluronic acid)-2-acetamido-2-deoxy-D-glucose.

Links to other databases

Enzymes and pathways: NC-IUBMB , BRENDA , ExplorEnz , ENZYME@ExPASy , KEGG , MetaCyc , UniPathway
Structural data: CSA , EC2PDB
Gene Ontology: GO:0030340
CAS Registry Number: 37259-53-3


  1. Linker, A., Hoffman, P., Meyer, K., Sampson, P. and Korn, E.D.
    The formation of unsaturated disaccharides from mucopolysaccharides and their cleavage to α-keto acid by bacterial enzymes.
    J. Biol. Chem. 235 : 3061-3065 (1960). [PMID: 13762462]
  2. Meyer, K. and Rapport, M.M.
    Adv. Enzymol. Relat. Subj. Biochem. 13 : 199-236 (1952). [PMID: 14943668]
  3. Moran, F., Nasuno, S. and Starr, M.P.
    Extracellular and intracellular polygalacturonic acid trans-eliminases of Erwinia carotovora.
    Arch. Biochem. Biophys. 123 : 298-306 (1968). [PMID: 5642600]

[EC created 1961 as EC, transferred 1972 to EC, modified 2001]