FN1 and infectious disease: Streptococcus suis, a microorganism causing infectious diseases in pigs and other domestic animals [110], expresses a PavA homologue named FbpS (Fibronectin-binding protein of S. suis) (70% identity with PavA) that interacts with fibrinogen and Fn [111] and the Fn-binding site has been located in the N terminal region of the protein [112].