DIAPH1 and infection: In addition, while infection with EPEC caused a major activation of SFKs in control cells (Fig 8F; compare uninfected lane 1 to infected lane 4; uninfected pSrc:Src ratio = 1, EPEC WT pSrc:Src ratio = 4.99 +/- 0.65, n = 6 blots), this activation was markedly dampened in the mDia1-depleted samples (lanes 5–6).