Figure 3. . Amino acid substitution frequency at each position of the feline infectious peritonitis virus S1/S2 cleavage site. The histogram is based on feline infectious peritonitis virus S1/S2 WebLogo 3.1 analysis (http://weblogo.threeplusone.com/create.cgi), showing percentage of modification of residues at each position of the S1/S2 site, compared with feline enteric coronavirus S1/S2 canonical sequence consensus.
1These authors contributed equally to this article.
Page created: June 17, 2013
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