PUBLICATION
The elongation factors Pandora/Spt6 and Foggy/Spt5 promote transcription in the zebrafish embryo
- Authors
- Keegan, B.R., Feldman, J.L., Lee, D.H., Koos, D.S., Ho, R.K., Stainier, D.Y., and Yelon, D.
- ID
- ZDB-PUB-020403-15
- Date
- 2002
- Source
- Development (Cambridge, England) 129(7): 1623-1632 (Journal)
- Registered Authors
- Feldman, Jessica, Ho, Robert K., Keegan, Brian, Koos, David, Lee, Diana, Stainier, Didier, Yelon, Deborah
- Keywords
- heart; Spt6; Spt5; transcription elongation; Real-time RT-PCR; hsp70; zebrafish
- MeSH Terms
-
- Male
- Saccharomyces cerevisiae Proteins*
- Zebrafish Proteins*
- Transcription Factors/genetics*
- RNA, Messenger/genetics
- Phenotype
- Gene Expression Regulation, Developmental
- Transcriptional Elongation Factors
- Chromosome Mapping
- Zebrafish/embryology*
- Zebrafish/genetics*
- Nuclear Proteins/genetics*
- Animals
- Transcription, Genetic
- Peptide Elongation Factors/genetics*
- Female
- Hot Temperature
- Mutation
- PubMed
- 11923199 Full text @ Development
Citation
Keegan, B.R., Feldman, J.L., Lee, D.H., Koos, D.S., Ho, R.K., Stainier, D.Y., and Yelon, D. (2002) The elongation factors Pandora/Spt6 and Foggy/Spt5 promote transcription in the zebrafish embryo. Development (Cambridge, England). 129(7):1623-1632.
Abstract
Precise temporal and spatial control of transcription is a fundamental component of embryonic development. Regulation of transcription elongation can act as a rate-limiting step during mRNA synthesis. The mechanisms of stimulation and repression of transcription elongation during development are not yet understood. We have identified a class of zebrafish mutations (pandora, sk8 and s30) that cause multiple developmental defects, including discrete problems with pigmentation, tail outgrowth, ear formation and cardiac differentiation. We demonstrate that the pandora gene encodes a protein similar to Spt6, a proposed transcription elongation factor. Additionally, the sk8 and s30 mutations are null alleles of the foggy/spt5 locus, which encodes another transcription elongation factor. Through real-time RT-PCR analysis, we demonstrate that Spt6 and Spt5 are both required for efficient kinetics of hsp70 transcription in vivo. Altogether, our results suggest that Spt6 and Spt5 play essential roles of comparable importance for promoting transcription during embryogenesis. This study provides the first genetic evidence for parallel functions of Spt6 and Spt5 in metazoans and establishes a system for the future analysis of transcription elongation during development. Supplemental figure available on-line
Genes / Markers
Expression
Phenotype
Mutations / Transgenics
Human Disease / Model
Sequence Targeting Reagents
Fish
Orthology
Engineered Foreign Genes
Mapping