Regulation of translation and proteolysis during the development of embryonic dorso-ventral polarity in Drosophila. Homology of easter proteinase with Limulus proclotting enzyme and translational activation of Toll receptor synthesis.

Abstract excerpt

The generation of dorso-ventral polarity during Drosophila embryogenesis is regulated by the action of 12 maternally expressed gene products, the dorsal group. These products act together to form a dorso-ventral nuclear gradient of the transcription factor dorsal. At least three of the dorsal group genes (snake, easter and gastrulation defective) encode secreted serine proteinases which probably function during...

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