Additional file 2 of Avian interferon regulatory factor (IRF) family reunion: IRF3 and IRF9 found

Additional file 2. Fig. S1. Percentages of amino acids with GC-rich codonsin IRF protein sequences correlate with GC contents of IRF coding sequences. Fig. S2. CLUSTAL 2.1 multiple sequence alignment of avian IRF3 proteins. Fig. S3. IRF7 sequences of neognath birds that are erroneously annotated as IRF3 in Genbankcluster with vertebrate IRF7 sequences rather than with IRF3. Fig. S4. Supplementary information for Fig. 5. Avian IRF9 protein sequences form a single clade in the phylogenetic tree. Fig. S5. Pairwise alignment of IRF9 coding sequences of endogenous duck IRF9 with in vitro synthesized construct. Fig. S6. Original gel and blot images