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Published on: January 19, 2019
Polyglycine II nanosheets: supramolecular antivirals?
Alexander B Tuzikov1, Alexander A Chinarev, Alexandra S Gambaryan
1Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, ul. Miklukho-Maklaya 16/10, Moscow V-437, 117997, Russia.
Abstract:
Tetraantennary peptides [glycine(n)-NHCH(2)](4)C can form stable noncovalent structures by self-assembly through intermolecular hydrogen bonding. The oligopeptide chains assemble as polyglycine II to yield submicron-sized, flat, one-molecule-thick sheets. Attachment of alpha-N-acetylneuraminic acid (Neu5Acalpha) to the terminal glycine residues gives rise to water-soluble assembled glycopeptides that are able to bind influenza virus multivalently and inhibit adhesion of the virus to cells 10(3)-fold more effectively than a monomeric glycoside of Neu5Acalpha. Another antiviral strategy based on virus-promoted assembly of the glycopeptides was also demonstrated. Consequently, the self-assembly principle offers new perspectives on the design of multivalent antivirals.
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