Table 2. yadBC-dependent modulation of bacterial uptake by J774A.1 cells.

Test and bacterial growth temperature (no. of experiments)	Y. pestis CO92 strain; key properties	Percentage invasion (mean±sd)
Adherence to J774A.1
1 37 °C (2)	CO92.S10; Pla+F1− ΔyadBC	94±14
	CO92.S2; Pla+F1− native yadBC+	74±22 (P = 0.0891)
Intracellular, J774A.1
2 37 °C (2)	CO92.S10; Pla+F1− ΔyadBC	54±21
	CO92.S2; Pla+ F1− native yadBC+	87±13 (P = 0.0190)
3 28 °C (3)	CO92.S10 Pla+F1− ΔyadBC	28±21
	CO92.S2 Pla+F1− native yadBC+	31±16 (P = 0.748)