NEU1

Sialidase 1 (lysosomal sialidase), also known as NEU1 is a mammalian lysosomal neuraminidase enzyme which in humans is encoded by the NEU1 gene.[4][5]

NEU1
Identifiers
AliasesNEU1, NANH, NEU, SIAL1, neuraminidase 1 (lysosomal sialidase), neuraminidase 1
External IDsOMIM: 608272 MGI: 97305 HomoloGene: 375 GeneCards: NEU1
Gene location (Human)
Chr.Chromosome 6 (human)[1]
Band6p21.33Start31,857,659 bp[1]
End31,862,822 bp[1]
Orthologs
SpeciesHumanMouse
Entrez

4758

18010

Ensembl

ENSMUSG00000007038

UniProt

Q99519

O35657

RefSeq (mRNA)

NM_000434

NM_010893

RefSeq (protein)

NP_000425

NP_035023

Location (UCSC)Chr 6: 31.86 – 31.86 Mbn/a
PubMed search[2][3]
Wikidata
View/Edit HumanView/Edit Mouse

Function

The protein encoded by this gene encodes the lysosomal enzyme, which cleaves terminal sialic acid residues from substrates such as glycoproteins and glycolipids. In the lysosome, this enzyme is part of a heterotrimeric complex together with beta-galactosidase and cathepsin A (the latter also referred to as 'protective protein'). Mutations in this gene can lead to sialidosis.[4]

Clinical significance

Deficiencies in the human enzyme NEU1 leads to sialidosis, a rare lysosomal storage disease.[6] Sialidase has also been shown to enhance recovery from spinal cord contusion injury when injected in rats.[7]

Interactions

NEU1 has been shown to interact with Cathepsin A.[8]

References

  1. ENSG00000184494, ENSG00000223957, ENSG00000234846, ENSG00000204386, ENSG00000234343, ENSG00000227315, ENSG00000228691 GRCh38: Ensembl release 89: ENSG00000227129, ENSG00000184494, ENSG00000223957, ENSG00000234846, ENSG00000204386, ENSG00000234343, ENSG00000227315, ENSG00000228691 - Ensembl, May 2017
  2. "Human PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
  3. "Mouse PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
  4. "Entrez Gene: NEU1 sialidase 1 (lysosomal sialidase)".
  5. Pshezhetsky AV, Richard C, Michaud L, Igdoura S, Wang S, Elsliger MA, Qu J, Leclerc D, Gravel R, Dallaire L, Potier M (March 1997). "Cloning, expression and chromosomal mapping of human lysosomal sialidase and characterization of mutations in sialidosis". Nat. Genet. 15 (3): 316–20. doi:10.1038/ng0397-316. PMID 9054950. S2CID 31588761.
  6. Seyrantepe V, Poupetova H, Froissart R, Zabot MT, Maire I, Pshezhetsky AV (November 2003). "Molecular pathology of NEU1 gene in sialidosis". Hum. Mutat. 22 (5): 343–52. doi:10.1002/humu.10268. PMID 14517945. S2CID 22333886.
  7. Mountney A, Zahner MR, Lorenzini I, Oudega M, Schramm LP, Schnaar RL (June 2010). "Sialidase enhances recovery from spinal cord contusion injury". PNAS. 107 (25): 11561–6. Bibcode:2010PNAS..10711561M. doi:10.1073/pnas.1006683107. PMC 2895144. PMID 20534525.
  8. van der Spoel A, Bonten E, d'Azzo A (Mar 1998). "Transport of human lysosomal neuraminidase to mature lysosomes requires protective protein/cathepsin A". EMBO J. 17 (6): 1588–97. doi:10.1093/emboj/17.6.1588. PMC 1170506. PMID 9501080.

Further reading

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