First Author | Suzuki A | Year | 1994 |
Journal | Proc Natl Acad Sci U S A | Volume | 91 |
Issue | 22 | Pages | 10255-9 |
PubMed ID | 7937936 | Mgi Jnum | J:23133 |
Mgi Id | MGI:70920 | Doi | 10.1073/pnas.91.22.10255 |
Citation | Suzuki A, et al. (1994) A truncated bone morphogenetic protein receptor affects dorsal-ventral patterning in the early Xenopus embryo [see comments]. Proc Natl Acad Sci U S A 91(22):10255-9 |
abstractText | Bone morphogenetic proteins (BMPs), which are members of the transforming growth factor beta (TGF-beta) superfamily, have been implicated in bone formation and the regulation of early development. To better understand the roles of BMPs in Xenopus laevis embryogenesis, we have cloned a cDNA coding for a serine/threonine kinase receptor that binds BMP-2 and BMP-4. To analyze its function, we attempted to block the BMP signaling pathway in Xenopus embryos by using a dominant-negative mutant of the BMP receptor. When the mutant receptor lacking the putative serine/threonine kinase domain was expressed in ventral blastomeres of Xenopus embryos, these blastomeres were respecified to dorsal mesoderm, eventually resulting in the formation of a secondary body axis. These findings suggest that endogenous BMP-2 and BMP-4 are involved in the dorsal-ventral specification in the embryo and that ventral fate requires induction rather than resulting from an absence of dorsal specification. |