Glycoprotein

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A glycoprotein is a membrane-bound protein that has a carbohydrate attached to its extracellular surface. The carbohydrate is a oligosaccharide chain that is covalently bonded to the amino acid side chain of the protein. The chain can be of various lengths.  Glycoproteins and glycolipids make up a carbohydrate-rich region of the plasma membrane called the glycocalyx, and serve to protect the cell [1]

References

  1. Alberts, B. et al (2008) Molecular Biology of the Cell: 5th Edition, New York: Garland Science
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