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Full-Text Articles in Neuroscience and Neurobiology
Assessment Of Daf-19 Related Behavioral Defects, Loraina A. Stinson
Assessment Of Daf-19 Related Behavioral Defects, Loraina A. Stinson
Lawrence University Honors Projects
The daf-19 gene encodes the only RFX transcription factors in C. elegans, producing at least four related protein isoforms, one of which, DAF-19C, is responsible for ciliogenesis. Previous work by Senti and Swoboda (2008) demonstrated that adult worms deficient in all four DAF-19 proteins have extremely aberrant dwelling and roaming behavior on bacterial food. Most intriguingly, the addition of cDNA encoding the DAF-19C isoform restores cilia formation, but does not fully restore wild-type dwelling and roaming behavior. We are suggesting that additional neuron functions are needed to properly execute behaviors and these neuron functions require the activity of other …
The Role Of Daf-19 In Non-Ciliated Neurons: How Is Neural Development Regulated By Different Daf-19 Isoforms?, Zabdiel Ek Vazquez
The Role Of Daf-19 In Non-Ciliated Neurons: How Is Neural Development Regulated By Different Daf-19 Isoforms?, Zabdiel Ek Vazquez
Lawrence University Honors Projects
A degenerative disease-like phenotype, specifically reduction in synaptic protein levels in adult worms, is correlated with loss-of-function of the only RFX transcription factor gene, daf-19, in C. elegans. This gene encodes four known transcription factor isoforms, two of which are correlated with particular functions. The DAF-19C isoform activates genes responsible for cilia development, while DAF-19M is needed for cilia specification in males. A comparison of the transcriptome of daf-19 null and isogenic wild type adult worms suggests both positive and negative regulation of gene expression is correlated with the presence of DAF-19 proteins. We have assessed DAF-19 regulation …