Fig 1I. Copyright: This image is from Li C; Scott DA; Hatch E; Tian X; Mansour SL. "Dusp6 (Mkp3) is a negative feedback regulator of FGF-stimulated ERK signaling during mouse development." Development 2007;134:167-76 [doi:10.1242/dev.02701] and is displayed with the permission of The Company of Biologist Limited who owns the Copyright.