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- Table of Contents
5 Citations 6 Q&As
2 Citations 1 Q&As
Facts about Heparanase.
It's basically inactive at neutral pH but becomes active under acidic conditions like during tumor invasion and in inflammatory processes. Facilitates cell migration associated with metastasis, wound healing and inflammation.
Human | |
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Gene Name: | HPSE |
Uniprot: | Q9Y251 |
Entrez: | 10855 |
Belongs to: |
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glycosyl hydrolase 79 family |
EC 3.2; Endo-glucoronidase; HEP; Heparanase; Heparanase-1; HPA1; HPAheparanase exon 9 and 10 deletion; HPR1; HPSE; HPSE1heparanase-1; HSE1; HSE1heparanase exon10-deletion
Mass (kDA):
61.149 kDA
Human | |
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Location: | 4q21.23 |
Sequence: | 4; NC_000004.12 (83292461..83335153, complement) |
Highly expressed in placenta and spleen and weakly expressed in lymph node, thymus, peripheral blood leukocytes, bone marrow, endothelial cells, fetal liver and tumor tissues. Also expressed in hair follicles, specifically in both Henle's and Huxley's layers of inner the root sheath (IRS) at anagen phase.
Lysosome membrane; Peripheral membrane protein. Secreted. Nucleus. Proheparanase is secreted via vesicles of the Golgi. Interacts with cell membrane heparan sulfate proteoglycans (HSPGs). Endocytosed and accumulates in endosomes. Transferred to lysosomes where it is proteolytically cleaved to produce the active enzyme. Under certain stimuli, transferred to the cell surface. Associates with lipid rafts. Colocalizes with SDC1 in endosomal/lysosomal vesicles. Accumulates in perinuclear lysosomal vesicles. Heparin retains proheparanase in the extracellular medium (By similarity).
PMID: 10405343 by Kussie P.H., et al. Cloning and functional expression of a human heparanase gene.
PMID: 10446189 by Toyoshima M., et al. Human heparanase. Purification, characterization, cloning, and expression.
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