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Spatial and temporal distribution of the traf4 genes during zebrafish development
Valérie Kedinger1, Fabien Alpy, Catherine Tomasetto
1Institut de Génétique et de Biologie Moléculaire et Cellulaire (IGBMC), CNRS/INSERM/Université Louis Pasteur, BP 10142, 67404 Illkirch Cedex, C.U. de Strasbourg, France.
Gene Expression Patterns : GEP
|March 8, 2005
Summary
Tumor necrosis factor-associated factor 4 (TRAF4) genes were identified in zebrafish as traf4a and traf4b. Traf4a shows specific embryonic expression, suggesting it is the conserved zebrafish ortholog of human TRAF4.
Area of Science:
- Developmental Biology
- Molecular Biology
- Genetics
Background:
- Tumor necrosis factor-associated factor 4 (TRAF4) is a unique member of the TRAF protein family, distinct from those involved in TNF and IL-1 signaling.
- TRAF4's specific biological roles and evolutionary conservation are not fully understood.
Purpose of the Study:
- To identify and characterize zebrafish orthologs of the human TRAF4 gene.
- To investigate the expression patterns of these zebrafish TRAF4 orthologs during embryonic development.
Main Methods:
- Cloning of two zebrafish orthologs: traf4a and traf4b.
- Analysis of gene expression patterns during zebrafish embryogenesis using in situ hybridization.
Main Results:
- Identified traf4a and traf4b as the first TRAF genes described in zebrafish.
- traf4b exhibited weak, ubiquitous expression during embryogenesis.
- traf4a displayed highly specific expression in neural, sensorial cells, and somites, indicating tight regulation.
Conclusions:
- The traf4 gene is conserved across evolution.
- traf4a represents the zebrafish ortholog of human TRAF4.
- The specific expression pattern of traf4a suggests critical roles in zebrafish embryonic development.