Both PAI IIJ96 and PAI ICFT073 were absent, explaining the lack of classical UTI virulence factors such as Hly (HlyA, HlyB, and HlyC), cyclomodulins (Cnf1) and Pap (PapG, PapX, PapF, PapE, PapK, PapJ, PapD, PapC) in the three ST131 strains. The gene discussed is KRCC1; the disease is bacterial urinary tract infection.