Redox and SFK signaling at wounds. (A) Immunofluorescence of pSFK (phosphorylation of SFK activation loop tyrosine) in 3-dpf larvae at various time points. Arrows indicate the position of tail transection. The dotted line is the position of tail transection. (B) Immunofluorescence of pSFK and pErk in 3-dpf larvae at 30 min after tail transection. DPI and PP2 inhibit SFK activation at wounds but not Erk activation. (C) Immunofluorescence of pSFK and Cadherin in 2.5-dpf larvae at 30 min after tail transection. hpw, hour postwounding. Bars, 50 µm.