HEK293/TLR5 cells were transfected with Trib2 siRNA or control siRNA, or left untransfected (Ctrl) for 24 hours. Cells were treated with flagellin (100ng/ml) for 0, 5 or 20 min. Membranes were hybridized with indicated phospho-antibodies, then stripped and rehybridized with anti-MAPK antibodies. Bands from the 20-minute flagellin treatment were quantified by densitometry. (A, B: JNK; C, D: p38; E, F: ERK). * p<0.05 for all panels.