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High Resolution Whole Mount In Situ Hybridization within Zebrafish Embryos to Study Gene Expression and Function
Published on: October 19, 2013
The transcriptional activator ZNF143 is essential for normal development in zebrafish
Kari M Halbig1, Arne C Lekven, Gary R Kunkel
1Department of Biochemistry and Biophysics, Texas A&M University, College Station, TX 77843-2128, USA.
BMC Molecular Biology
|January 25, 2012
Summary
Zinc finger protein 143 (ZNF143) is essential for normal zebrafish development, regulating gene expression. Knockdown causes developmental defects, highlighting ZNF143
Area of Science:
- Developmental Biology
- Molecular Biology
- Genetics
Background:
- ZNF143 is a transcription factor that activates gene expression.
- Its role in embryonic development is not fully understood.
Purpose of the Study:
- To investigate the function of ZNF143 during zebrafish embryonic development.
- To identify genes regulated by ZNF143.
Main Methods:
- Morpholino antisense oligonucleotides were used to knockdown ZNF143 in zebrafish embryos.
- Phenotypic abnormalities were observed and documented.
- Rescue experiments were performed using synthetic mRNA.
- Gene expression analysis was conducted for marker genes.
Main Results:
- ZNF143 knockdown resulted in pleiotropic developmental defects affecting the heart, blood, ear, and midbrain-hindbrain boundary.
- These defects were rescued by expressing full-length ZNF143, but not truncated versions.
- Expression of key developmental genes, including gata1, cmlc2, and pax2a, was altered.
- ZNF143 directly binds to the pax2a promoter and activates its transcription.
Conclusions:
- ZNF143 is crucial for normal zebrafish embryonic development.
- The pax2a gene is a target of ZNF143, indicating its role in regulating protein-coding genes during development.
