PUBLICATION
Zebrafish Delta Np63 is a direct target of Bmp signaling and encodes a transcriptional repressor blocking neural specification in the ventral ectoderm
- Authors
- Bakkers, J., Hild, M., Kramer, C., Furutani-Seiki, M., and Hammerschmidt, M.
- ID
- ZDB-PUB-020513-6
- Date
- 2002
- Source
- Developmental Cell 2(5): 617-627 (Journal)
- Registered Authors
- Bakkers, Jeroen, Furutani-Seiki, Makoto, Hammerschmidt, Matthias, Hild, Marc
- Keywords
- none
- MeSH Terms
-
- Gene Expression Regulation, Developmental
- Zebrafish/embryology*
- Zebrafish/genetics*
- Zebrafish/physiology
- Repressor Proteins/genetics
- Repressor Proteins/physiology
- Base Sequence
- Models, Neurological
- Bone Morphogenetic Proteins/physiology*
- DNA/genetics
- Molecular Sequence Data
- Phosphoproteins/genetics*
- Phosphoproteins/physiology
- In Situ Hybridization
- Membrane Proteins*
- Trans-Activators/genetics*
- Trans-Activators/physiology
- Cloning, Molecular
- Zebrafish Proteins*
- Body Patterning/genetics
- Nervous System/embryology
- Signal Transduction
- Ectoderm/cytology
- Animals
- PubMed
- 12015969 Full text @ Dev. Cell
Citation
Bakkers, J., Hild, M., Kramer, C., Furutani-Seiki, M., and Hammerschmidt, M. (2002) Zebrafish Delta Np63 is a direct target of Bmp signaling and encodes a transcriptional repressor blocking neural specification in the ventral ectoderm. Developmental Cell. 2(5):617-627.
Abstract
Bone morphogenetic proteins (Bmps) promote ventral specification in both the mesoderm and the ectoderm of vertebrate embryos. Here we identify zebrafish DeltaNp63, encoding an isoform of the p53-related protein p63, as an ectoderm-specific direct transcriptional target of Bmp signaling. DeltaNp63 itself acts as a transcriptional repressor required for ventral specification in the ectoderm of gastrulating embryos. Loss of DeltaNp63 function leads to reduced nonneural ectoderm followed by defects in epidermal development during skin and fin bud formation. In contrast, forced DeltaNp63 expression blocks neural development and promotes nonneural development, even in the absence of Bmp signaling. Together, DeltaNp63 fulfills the criteria to be the neural repressor postulated by the "neural default model."
Genes / Markers
Expression
Phenotype
Mutations / Transgenics
Human Disease / Model
Sequence Targeting Reagents
Fish
Orthology
Engineered Foreign Genes
Mapping