Gene elav of Drosophila melanogaster: a prototype for neuronal-specific RNA binding protein gene family that is conserved in flies and humans.

Regulated gene activity is crucial to the formation and function of the nervous system. It is well known that gene regulation can occur at the transcriptional, post-transcriptional, translational, and post-translational levels. In this review our focus has been on the post-transcriptional regulation in neurons and on neural-specific RNA binding proteins that may be involved in post-transcriptional modulation of gene activity. We have taken advantage of this opportunity to review our work on the elav gene of Drosophila melanogaster which encodes a neural-specific RNA binding protein and relate it to other members of this elav-like gene family. We report new data that suggests that elav is post-transcriptionally regulated and we demonstrate that below-threshold levels of ELAV protein severely affects neuronal differentiation.

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