Identifying Spt5 Target Genes in Zebrafish Development
Author Information
Author(s): Krishnan Keerthi, Salomonis Nathan, Guo Su
Primary Institution: University of California San Francisco
Hypothesis
What other genes, if any, are critically dependent on Spt5 in vivo?
Conclusion
Spt5 acts as a dual regulator of transcription elongation in vivo, affecting a small but diverse set of target genes during zebrafish development.
Supporting Evidence
- Less than 5% of genes were differentially expressed between fogsk8 mutants and wildtype siblings.
- Up-regulated genes exhibited shorter overall gene lengths compared to all genes examined.
- Spt5 occupancy patterns were characteristic of both repressive and stimulatory elongation regulation.
Takeaway
This study found that a small number of genes in zebrafish need a protein called Spt5 to help them make their instructions, which are important for development.
Methodology
Expression profiling of over 10,000 protein-coding genes using zebrafish embryos and chromatin immunoprecipitation (ChIP) to identify Spt5 target genes.
Limitations
The study only examined one developmental stage, which may not represent the full range of Spt5 target genes across development.
Participant Demographics
Zebrafish embryos at 24 hours post fertilization.
Statistical Information
P-Value
p<0.05
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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