Click here to close Hello! We notice that you are using Internet Explorer, which is not supported by Xenbase and may cause the site to display incorrectly. We suggest using a current version of Chrome, FireFox, or Safari.
XB-ART-37249
Dev Dyn March 1, 2008; 237 (3): 683-91.

Activin/nodal signaling modulates XPAPC expression during Xenopus gastrulation.

Lou X , Li S , Wang J , Ding X .


Abstract
Gastrulation is the first obligatory morphogenesis during vertebrate development, by which the body plan is established. Nodal signaling is a key player in many developmental processes, including gastrulation. XPAPC has been found to exert its biological function through modifying the adhesion property of cells and interacting with other several important molecules in embryos. In this report, we show that nodal signaling is necessary and sufficient for XPAPC expression during Xenopus gastrulation. Furthermore, we isolated 4.8 kb upstream DNA sequence of Xenopus XPAPC, and proved that this 4.8-kb genomic contig is sufficient to recapitulate the expression pattern of XPAPC from gastrula to tail bud stage. Transgene and ChIP assays indicate that Activin/nodal signaling participates in regulation of XPAPC expression through a Smad binding element within the XPAPC promoter. Concomitant investigation suggests that the canonical Wnt pathway-activated XPAPC expression requires nodal signaling.

PubMed ID: 18265000
Article link: Dev Dyn

Genes referenced: chrd.1 nodal nodal1 nodal2 odc1 pcdh8 szl tbxt


Article Images: [+] show captions


Xenbase: The Xenopus laevis and X. tropicalis resource.
Version: 4.12.0


Major funding for Xenbase is provided by grant P41 HD064556