Azotobacter cytochrome b557.5 is a bacterioferritin.
D001395:Azotobacter / Q000032:analysis*; D003580:Cytochromes; D005293:Ferritins; D007501:Iron; D008854:Microscopy, Electron; D013057:Spectrum Analysis
D003580:Cytochromes; D005293:Ferritins; D007501:Iron