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UK funding (£387,577): Analysis of virulence determinants in full length H5N1 influenza genomes using computational modelling Ukri1 Jul 2007 UK Research and Innovation, United Kingdom
Overview
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Analysis of virulence determinants in full length H5N1 influenza genomes using computational modelling
| Abstract | H5N1 bird 'flu has caused massive mortality in poultry since its emergence in the far east in 1997. Particularly since 2002, increasing numbers of wildfowl have been found dead and dying, which is very unusual for bird 'flu as it does not normally cause severe disease in wild birds. It has also given rise to an estimated minimum of 250 human deaths. As has been seen in the news, wild birds have recently spread the virus into Europe along East-West migration routes from Asia. We clearly urgently need to identify what has changed in the virus which has led to this increase in mortality. This is a difficult task for several reasons. Firstly, the risks associated with the virus make it difficult to work with experimentally in the laboratory, as we must be certain the virus cannot escape. Secondly, influenza evolves naturally very rapidly. This applies whether or not the mortality associated with it is changing and makes it difficult to identify the exact genetic factors responsible. Thirdly, some genetic changes which have been important in the past have been identified, but recent laboratory studies suggest many more could also be important in the current epidemic. We will study this by taking a computer-based approach. A very large amount of information on the genetic make-up of several thousand different strains of H5N1 'flu. On average each one of these may differ at about 700 different amino acid sites in its proteins from any other. To find out which of these sites are important, we use a new statistical approach which is designed to cope with very large complex bodies of data and identify critical components that are responsible for the increase in mortality. These new models require very fast computers and we will be using one of the fastest in the UK: the IBM BlueGene supercomputer at the University of Edinburgh. Our aim is to identify the important components of the H5N1 'flu genome that can be most clearly associated with the mortality change. In this way we can assist with the design of very specific and controlled laboratory experiments which can be constructed to test our conclusions, and which may lead to identification of the key genetic elements for intervention through drug development. |
| Category | Research Grant |
| Reference | BB/E009670/1 |
| Status | Closed |
| Funded period start | 01/07/2007 |
| Funded period end | 31/01/2011 |
| Funded value | £387,577.00 |
| Source | https://gtr.ukri.org/projects?ref=BB%2FE009670%2F1 |
Participating Organisations
| University of Edinburgh |
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