FIG 3.

Comparison of amino acid sequences of RNA polymerases (RNAP) encoded by Xanthomonas phages. (A) The amino acid sequence of Cp1 ORF33 (AB720063) was aligned with those of phiL7 p35 (ACE75775.1)., Xop411 p32 (ABK00180.1), Xp10 32L (AAP58699.1), OP1 ORF33 (BAE72738.1), and coliphage T7 RNAP (NP_041960.1) using ClustalX. The ClustalX coloring scheme depends on both the residue type and the pattern of conservation within a column (http://www.cgl.ucsf.edu/chimera/docs/ContributedSoftware/multalignviewer/cxcolor.html). Conservation scores are drawn below the alignment. (B) The unrooted dendrogram was constructed with the Treeview tool using the maximum likelihood method based on a complete protein sequence alignment of RNAP proteins from other phages.