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. 2010 Jun 15;5(6):e11112. doi: 10.1371/journal.pone.0011112

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Henkel et al.

This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited.

PMC Copyright notice

The proteins from A/Puerto Rico/8/34 (H1N1) strain (PB1-F2_pr8), the Spanish flu isolate (PB1-F2_sf) and the bird flu virus (H5N1) (PB1-F2_bf) have an overall identity (*) of ca 60%. The domains, which are predicted by structural prediction algorithms to have a high propensity for α-helixes are marked in gray. The truncated peptide sPB1-F2_pr8 ^50–87 is underlined.