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. 2006 Aug;80(16):7789–7798. doi: 10.1128/JVI.00600-06

FIG. 2.

FIG. 2.

Alignment of residues 1 to 402 of the PA subunits of the RNA polymerases of influenza A, B, and C viruses and Thogoto virus. Sequence accession numbers are X17336 for influenza virus A/WSN/33, AF102022 for influenza virus B/Victoria/2/87, M28062 for influenza virus C/JJ/50, and AF006073 for Thogoto virus. Sequences were aligned with Omiga software, version 2.0 (Oxford Molecular Ltd., Oxford, United Kingdom). Numbers refer to amino acid positions in the A/WSN/33 sequences, and amino acids selected for mutagenesis are highlighted. Identical amino acids are boldfaced.