18-P003 A gene regulatory network for mesoderm directed by zebrafish No tail
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18-P003 A gene regulatory network for mesoderm directed by zebrafish No tail
The secreted protein Hedgehog (Hh) acts a morphogen, forming a concentration gradient and controlling cell fate decisions in various developmental stages in many animals. In recent years, there has been significant interest in the role that glypicans play in Hh gradient formation and signalling; with various experimental studies demonstrating an effect on Hh transport, Hh stability and downstre...
متن کاملA gene regulatory network directed by zebrafish No tail accounts for its roles in mesoderm formation.
Using chromatin immunoprecipitation combined with genomic microarrays we have identified targets of No tail (Ntl), a zebrafish Brachyury ortholog that plays a central role in mesoderm formation. We show that Ntl regulates a downstream network of other transcription factors and identify an in vivo Ntl binding site that resembles the consensus T-box binding site (TBS) previously identified by in ...
متن کاملThe one-eyed pinhead gene functions in mesoderm and endoderm formation in zebrafish and interacts with no tail.
The zebrafish locus one-eyed pinhead (oep) is essential for the formation of anterior axial mesoderm, endoderm and ventral neuroectoderm. At the beginning of gastrulation anterior axial mesoderm cells form the prechordal plate and express goosecoid (gsc) in wild-type embryos. In oep mutants the prechordal plate does not form and gsc expression is not maintained. Exposure to lithium, a dorsalizi...
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libraries are screened to saturation using an optimized mating procedure. This allows to test on average 100 million interactions per screen, corresponding to a 10-fold coverage of the library. As a consequence, multiple, independent fragments are isolated for each interactant, enabling the immediate delineation of a minimal interacting domain and the computation of a confidence score. These li...
متن کاملno tail integrates two modes of mesoderm induction.
During early zebrafish development the nodal signalling pathway patterns the embryo into three germ layers, in part by inducing the expression of no tail (ntl), which is essential for correct mesoderm formation. When nodal signalling is inhibited ntl fails to be expressed in the dorsal margin, but ventral ntl expression is unaffected. These observations indicate that ntl transcription is under ...
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ژورنال
عنوان ژورنال: Mechanisms of Development
سال: 2009
ISSN: 0925-4773
DOI: 10.1016/j.mod.2009.06.771