Glypican 1

Glypican-1 is a protein that in humans is encoded by the GPC1 gene.[5][6]

GPC1
Available structures
PDBOrtholog search: PDBe RCSB
Identifiers
AliasesGPC1, glypican, Glypican 1
External IDsOMIM: 600395 MGI: 1194891 HomoloGene: 20477 GeneCards: GPC1
Gene location (Human)
Chr.Chromosome 2 (human)[1]
Band2q37.3Start240,435,663 bp[1]
End240,468,076 bp[1]
Orthologs
SpeciesHumanMouse
Entrez

2817

14733

Ensembl

ENSG00000063660

ENSMUSG00000034220

UniProt

P35052

Q9QZF2

RefSeq (mRNA)

NM_002081

NM_016696

RefSeq (protein)

NP_002072

NP_057905

Location (UCSC)Chr 2: 240.44 – 240.47 MbChr 1: 92.83 – 92.86 Mb
PubMed search[3][4]
Wikidata
View/Edit HumanView/Edit Mouse

Function

Cell surface heparan sulfate proteoglycans are composed of a membrane-associated protein core substituted with a variable number of heparan sulfate chains. Members of the glypican-related integral membrane proteoglycan family (GRIPS) contain a core protein anchored to the cytoplasmic membrane via a glycosyl phosphatidylinositol linkage. These proteins may play a role in the control of cell division and growth regulation.[6]

Interactions

Glypican 1 has been shown to interact with SLIT2.[7]

Clinical significance

This protein is involved in the misfolding of normal prion proteins in the cell membrane to the infectious prion form.[8]

In 2015 it was reported that the presence of this protein in exosomes in patients' blood is able to detect early pancreatic cancer with absolute specificity and sensitivity.[9] However this conclusion is disputed.[10] and in more recent overviews of potential markers for pancreatic cancer, Glypican 1 is not mentioned.[11][12]

See also

References

  1. GRCh38: Ensembl release 89: ENSG00000063660 - Ensembl, May 2017
  2. GRCm38: Ensembl release 89: ENSMUSG00000034220 - Ensembl, May 2017
  3. "Human PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
  4. "Mouse PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
  5. Vermeesch JR, Mertens G, David G, Marynen P (Jul 1995). "Assignment of the human glypican gene (GPC1) to 2q35-q37 by fluorescence in situ hybridization". Genomics. 25 (1): 327–9. doi:10.1016/0888-7543(95)80152-C. PMID 7774946.
  6. "Entrez Gene: GPC1 glypican 1".
  7. Ronca F, Andersen JS, Paech V, Margolis RU (August 2001). "Characterization of Slit protein interactions with glypican-1". J. Biol. Chem. 276 (31): 29141–7. doi:10.1074/jbc.M100240200. PMID 11375980.
  8. Taylor DR, Whitehouse IJ, Hooper NM (November 2009). "Glypican-1 mediates both prion protein lipid raft association and disease isoform formation". PLOS Pathogens. 5 (11): e1000666. doi:10.1371/journal.ppat.1000666. PMC 2773931. PMID 19936054.
  9. Melo SA, Luecke LB, Kahlert C, Fernandez AF, Gammon ST, Kaye J, LeBleu VS, Mittendorf EA, Weitz J, Rahbari N, Reissfelder C, Pilarsky C, Fraga MF, Piwnica-Worms D, Kalluri R (July 2015). "Glypican-1 identifies cancer exosomes and detects early pancreatic cancer". Nature. 523 (7559): 177–82. doi:10.1038/nature14581. PMC 4825698. PMID 26106858.
  10. Discussions at www.pubpeer.com; https://pubpeer.com/publications/70714D8ACB8F13164A2752B4335F38#fb119888
  11. Balasenthil S, Huang Y, Liu S, Marsh T, Chen J, Stass SA, KuKuruga D, Brand R, Chen N, Frazier ML, Jack Lee J, Srivastava S, Sen S, McNeill Killary A (August 2017). "A Plasma Biomarker Panel to Identify Surgically Resectable Early-Stage Pancreatic Cancer". Journal of the National Cancer Institute. 109 (8). doi:10.1093/jnci/djw341. PMC 6059209. PMID 28376184.
  12. Chang JC, Kundranda M (March 2017). "Novel Diagnostic and Predictive Biomarkers in Pancreatic Adenocarcinoma". International Journal of Molecular Sciences. 18 (3): 667. doi:10.3390/ijms18030667. PMC 5372679. PMID 28335509.

Further reading

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