Posterior localization of the Drosophila Gi alpha protein during early embryogenesis requires a subset of the posterior group genes.

Abstract excerpt

Shortly after fertilization in Drosophila embryos, the G-protein alpha subunit, Gi alpha, undergoes a dramatic redistribution. Initially granules containing Gi alpha are present throughout the embryonic cortex but during nuclear cleavage they become concentrated at the posterior pole and are lost by the blastoderm stage. Mutations that eliminate anterior structures bicoid, swallow, and exuperantia did not prevent...

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