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Potential of Peptides as Inhibitors andMimotopes: Selection of Carbohydrate-Mimetic Peptides from Phage Display Libraries

Journal

JOURNAL OF NUCLEIC ACIDS
Volume 2012, Issue -, Pages -

Publisher

HINDAWI LTD
DOI: 10.1155/2012/740982

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Funding

  1. Keio Gijuku Fukuzawa Memorial Fund for the Advancement of Education and Research

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Glycoconjugates play various roles in biological processes. In particular, oligosaccharides on the surface of animal cells are involved in virus infection and cell-cell communication. Inhibitors of carbohydrate-protein interactions are potential antiviral drugs. Several anti-influenza drugs such as oseltamivir and zanamivir are derivatives of sialic acid, which inhibits neuraminidase. However, it is very difficult to prepare a diverse range of sugar derivatives by chemical synthesis or by the isolation of natural products. In addition, the pathogenic capsular polysaccharides of bacteria are carbohydrate antigens, for which a safe and efficacious method of vaccination is required. Phage-display technology has been improved to enable the identification of peptides that bind to carbohydrate-binding proteins, such as lectins and antibodies, from a large repertoire of peptide sequences. These peptides are known as carbohydrate-mimetic peptides (CMPs) because they mimic carbohydrate structures. Compared to carbohydrate derivatives, it is easy to prepare mono- and multivalent peptides and then to modify them to create various derivatives. Such mimetic peptides are available as peptide inhibitors of carbohydrate-protein interactions and peptide mimotopes that are conjugated with adjuvant for vaccination.

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