Download MendeleySynthesis and evaluation of novel 3-C-alkylated-Neu5Ac2en derivatives as probes of influenza virus sialidase 150-loop flexibility.
Rudrawar, S., Kerry, P.S., Rameix-Welti, M.A., Maggioni, A., Dyason, J.C., Rose, F.J., van der Werf, S., Thomson, R.J., Naffakh, N., Russell, R.J., von Itzstein, M.(2012) Org Biomol Chem 10: 8628-8639
- PubMed: 22976385
- DOI: https://doi.org/10.1039/c2ob25627d
- Primary Citation of Related Structures:
4GB1 - PubMed Abstract:
Novel 3-C-alkylated-Neu5Ac2en derivatives have been designed to target the expanded active site cavity of influenza virus sialidases with an open 150-loop, currently seen in X-ray crystal structures of influenza A virus group-1 (N1, N4, N5, N8), but not group-2 (N2, N9), sialidases. The compounds show selectivity for inhibition of H5N1 and pdm09 H1N1 sialidases over an N2 sialidase, providing evidence of the relative 150-loop flexibility of these sialidases. In a complex with N8 sialidase, the C3 substituent of 3-phenylally-Neu5Ac2en occupies the 150-cavity while the central ring and the remaining substituents bind the active site as seen for the unsubstituted template. This new class of inhibitors, which can 'trap' the open 150-loop form of the sialidase, should prove useful as probes of 150-loop flexibility.
Organizational Affiliation:
Institute for Glycomics, Gold Coast Campus, Griffith University, Queensland 4222, Australia.
