NUCB1 and osteomyelitis: Mutation in the genes encoding thermonuclease (SAOUHSC_00818 nuc), a fibrinogen-binding protein (SAOUHSC_01110), the repressor of toxins (SAOUHSC_01879 rot), and two serine proteases (SAOUHSC_01935 splF, SAOUHSC_01938 splD) also compromised the survival of S. aureus during osteomyelitis.