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Information on EC 3.2.1.166 - heparanase

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EC Tree
     3 Hydrolases
         3.2 Glycosylases
             3.2.1 Glycosidases, i.e. enzymes that hydrolyse O- and S-glycosyl compounds
                3.2.1.166 heparanase
IUBMB Comments
Heparanase cleaves the linkage between a glucuronic acid unit and an N-sulfo glucosamine unit carrying either a 3-O-sulfo or a 6-O-sulfo group . Heparanase-1 cuts macromolecular heparin into fragments of 5000--20000 Da . The enzyme cleaves the heparan sulfate glycosaminoglycans from proteoglycan core proteins and degrades them to small oligosaccharides. Inside cells, the enzyme is important for the normal catabolism of heparan sulfate proteoglycans, generating glycosaminoglycan fragments that are then transported to lysosomes and completely degraded. When secreted, heparanase degrades basement membrane heparan sulfate glycosaminoglycans at sites of injury or inflammation, allowing extravasion of immune cells into nonvascular spaces and releasing factors that regulate cell proliferation and angiogenesis .
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Word Map
The enzyme appears in viruses and cellular organisms
Reaction Schemes
endohydrolysis of (1->4)-beta-D-glycosidic bonds of heparan sulfate chains in heparan sulfate proteoglycan
Synonyms
C1A heparanase, heparan sulfate glycosidase, heparanase, heparanase 1, heparanase-1, HPA, Hpa1, Hpa1 heparanase, HPSE, T5, more
REACTION
REACTION DIAGRAM
COMMENTARY hide
ORGANISM
UNIPROT
LITERATURE
endohydrolysis of (1->4)-beta-D-glycosidic bonds of heparan sulfate chains in heparan sulfate proteoglycan
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PATHWAY SOURCE
PATHWAYS
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