Additional file 4: Figure S3. Comparative Nucleotide Metabolism Pathways Between SFB-turkey and Murine SFB Strains. A schematic comparison of metabolic capabilities of SFB strains isolated from turkey and murine hosts to synthesize and degrade purines and pyrimidines. Color coding for divergent metabolism is as follows: enzymatic pathways shared by all the SFB strains appear in black, enzymatic pathways and transporters that are unique to SFB-turkey appear in purple, and complete metabolic pathways conserved in each strain appear in bold and italics.