1,721,039 research outputs found
The effects of membrane protein phosphorilation on the bound adenylate cyclase activity in crude preparation of brain membranes
No full textThe effects of membrane protein phosphorylation on the membrane bound adenylate cyclase activity in crude preparation of rat brain membranes
No full textIn vitro phosphorylation of high molecular weight glutenin subunits from wheat endosperm
No full textWe have investigated the in vitrophosphorylation of highmolecularweightgluteninsubunits (HMW-GS), a group of non-soluble proteins present in wheatendosperm. Computer aided searches of potential biological sites in the known sequences of these proteins have evidenced the presence of sequence motifs specific for protein kinase C (PKC), calcium-dependent protein kinase from wheat, casein kinase II, tyrosine protein kinase and glycosylation. We have demonstrated that subunit 1Bx7 is a substrate of a partially purified PKC from rat brain. Further experiments have shown that this subunit is phosphorylated by an endogenous protein kinase activity found in wheat flour. These preliminary results are important for the possible implications on the structure-function relationships of these proteins and could probably suggest, for the first time, a potential physiological role in particular situations for some HMW-GS
Cholera toxin-mediated ADP-ribosylation " in vivo ": A useful tool for studying the G-protein cycle.
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Low insulin concentrations stimulate in vitro the soluble guanylate cyclase activity of rat liver.
No full textRelationship between the fluidity of the membrane lipids and the activity of the membrane-bound proteins: the effects of lidocaine on the adenylate cyclase activity of rat myocardium
No full textInteraction between f- and cholera toxin " in vivo " ADP-ribosilation on the adenylate cyclase acyivity modulation.
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Physiopathologic mechanism, clinical picture and therapeutic approach of acute myocardial failure
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