PUBLICATION
The DEAD box RNA helicase Ddx39ab is essential for myocyte and lens development in zebrafish
- Authors
- Zhang, L., Yang, Y., Li, B., Scott, I.C., Lou, X.
- ID
- ZDB-PUB-180418-14
- Date
- 2018
- Source
- Development (Cambridge, England) 145(8): (Journal)
- Registered Authors
- Li, Beibei, Lou, Xin, Scott, Ian, Yang, Yuxi, Zhang, Linlin
- Keywords
- Lens, Myocyte, RNA helicase, RNA splicing, Zebrafish
- Datasets
- GEO:GSE97067
- MeSH Terms
-
- DEAD-box RNA Helicases/genetics*
- DEAD-box RNA Helicases/metabolism
- Phenotype
- Lens, Crystalline/embryology
- Lens, Crystalline/metabolism
- Cell Lineage/genetics
- Mutation
- Animals, Genetically Modified
- Gene Knockout Techniques
- Animals
- Epigenesis, Genetic
- Cell Differentiation/genetics
- Gene Expression Regulation, Developmental
- Gene Expression Regulation, Enzymologic
- Zebrafish Proteins/genetics*
- Zebrafish Proteins/metabolism
- RNA Splicing
- Zebrafish/embryology*
- Zebrafish/genetics*
- Zebrafish/metabolism
- Histone-Lysine N-Methyltransferase/genetics
- Histone-Lysine N-Methyltransferase/metabolism
- Muscle Cells/cytology
- Muscle Cells/metabolism
- PubMed
- 29636379 Full text @ Development
Citation
Zhang, L., Yang, Y., Li, B., Scott, I.C., Lou, X. (2018) The DEAD box RNA helicase Ddx39ab is essential for myocyte and lens development in zebrafish. Development (Cambridge, England). 145(8).
Abstract
RNA helicases from the DEAD-box family are found in almost all organisms and have important roles in RNA metabolism, including RNA synthesis, processing and degradation. The function and mechanism of action of most of these helicases in animal development and human disease remain largely unexplored. In a zebrafish mutagenesis screen to identify genes essential for heart development we identified a mutant that disrupts the gene encoding the RNA helicase DEAD-box 39ab (ddx39ab). Homozygous ddx39ab mutant embryos exhibit profound cardiac and trunk muscle dystrophy, along with lens abnormalities, caused by abrupt terminal differentiation of cardiomyocyte, myoblast and lens fiber cells. Loss of ddx39ab hindered splicing of mRNAs encoding epigenetic regulatory factors, including members of the KMT2 gene family, leading to misregulation of structural gene expression in cardiomyocyte, myoblast and lens fiber cells. Taken together, these results show that Ddx39ab plays an essential role in establishment of the proper epigenetic status during differentiation of multiple cell lineages.
Genes / Markers
Expression
Phenotype
Mutations / Transgenics
Human Disease / Model
Sequence Targeting Reagents
Fish
Orthology
Engineered Foreign Genes
Mapping