Heparan_sulfamidase

SGSH

SGSH

Protein-coding gene in the species Homo sapiens


N-sulphoglucosamine sulphohydrolase is an enzyme that in humans is encoded by the SGSH gene.[5][6]

Quick Facts Available structures, PDB ...

Clinical significance

A number sign (#) is used with this entry because the phenotype is caused by mutation in the gene encoding N-sulfoglucosamine sulfohydrolase (SGSH; MIM 605270). The Sanfilippo syndrome, or mucopolysaccharidosis III, is a lysosomal storage disease due to impaired degradation of heparan sulfate.[7] MPS III includes 4 types, each due to the deficiency of a different enzyme: heparan N-sulfatase (type A); alpha-N-acetylglucosaminidase (type B; MIM 252920); acetyl CoA:alpha-glucosaminide acetyltransferase (type C; MIM 252930); and N-acetylglucosamine 6-sulfatase (type D; MIM 252940). The Sanfilippo syndrome is characterized by severe central nervous system degeneration, but only mild somatic disease. Onset of clinical features usually occurs between 2 and 6 years; severe neurologic degeneration occurs in most patients between 6 and 10 years of age, and death occurs typically during the second or third decade of life. Type A has been reported[8] to be the most severe, with earlier onset and rapid progression of symptoms and shorter survival.[6]


References

  1. "Human PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
  2. "Mouse PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
  3. Scott HS, Blanch L, Guo XH, Freeman C, Orsborn A, Baker E, Sutherland GR, Morris CP, Hopwood JJ (Dec 1995). "Cloning of the sulphamidase gene and identification of mutations in Sanfilippo A syndrome". Nature Genetics. 11 (4): 465–7. doi:10.1038/ng1295-465. PMID 7493035. S2CID 25869397.
  4. Esposito S, Balzano N, Daniele A, Villani GR, Perkins K, Weber B, Hopwood JJ, Di Natale P (Apr 2000). "Heparan N-sulfatase gene: two novel mutations and transient expression of 15 defects". Biochimica et Biophysica Acta (BBA) - Molecular Basis of Disease. 1501 (1): 1–11. doi:10.1016/s0925-4439(99)00118-0. PMID 10727844.
  5. van de Kamp JJ, Niermeijer MF, von Figura K, Giesberts MA (Aug 1981). "Genetic heterogeneity and clinical variability in the Sanfilippo syndrome (types A, B, and C)". Clinical Genetics. 20 (2): 152–60. doi:10.1111/j.1399-0004.1981.tb01821.x. PMID 6796310. S2CID 24826103.

Further reading



Share this article:

This article uses material from the Wikipedia article Heparan_sulfamidase, and is written by contributors. Text is available under a CC BY-SA 4.0 International License; additional terms may apply. Images, videos and audio are available under their respective licenses.