... ( Fig. 4 H,I). A similar reduction in the growth cone size was observed in Etv4 -deficient trigeminal sensory neurons ( Fig. 4 J,K). Several studies indicate that Pea3 transcription factors regulate the expression of different metalloproteinases (MMPs), which are involved in axonal growth of DRG...

... of the stomodeum. We identified several genes acting downstream of fgfA in these processes, including the transcription factors pea3 and pax2/5/8 and the signaling molecule sprouty in the lateral ectoderm and SM30 and SM50 in the primary mesenchyme cells. This study identifies the FGF signaling pathway...

... at a stage prior to heart tube elongation. Analysis of downstream signaling components, such as phosphorylated-Erk and Pea3, identifies the AHF splanchnic mesoderm itself as a target for Fgf8 signaling. * Author for correspondence (e-mail: [email protected] ) 18 4 2006 © 2006...

... involved in FGF signaling and found that several members of the Fgf8 synexpression group are co-expressed with Scx in the dorsal sclerotome. Of particular interest were the Ets transcription factors Pea3 and Erm , which function as transcriptional effectors of FGF signaling. We show here...