Trimeric G protein alpha subunits of the Gs and Gi families localized at the Golgi membrane.

Abstract excerpt

The occurrence of individual G proteins within Golgi membranes from liver and from adrenal medulla were analyzed by Western blotting. Two splice variants of G alpha s and also G alpha i-3 were found in both tissues. Additionally, G alpha i-2, its 43-kDa splice variant and G alpha o were strongly labeled in Golgi of adrenal medulla. Golgi preparations of liver contained comparable quantities of G alpha i-2 and a...

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