Figure 4.

Sequence logo representation of sequences around the start sites of the top 20 HFSs. Sequences were plotted with WebLogo [23]. The height of the letter indicates the degree of conservation. Nucleotide 11 is the start site of HFSs.

Jiang et al. Virology Journal 2011 8:194   doi:10.1186/1743-422X-8-194
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