M. Varsányi

Publications9
h-index8
Citations286
Highly Influential Citations1
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Enhancement of Ca2+ release channel activity by phosphorylation of the skeletal muscle ryanodine receptor
The Ca2+ release channel of rabbit skeletal muscle sarcoplasmic reticulum (SR) can be phosphorylated by membrane associated protein kinase(s) utilizing endogenously synthesized or exogenously added… Expand
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Phosphorylation of phosphatidylinositol associated with the nicotinic acetylcholine receptor of Torpedo californica.
When isolated, detergent solubilized and affinity chromatographically purified nicotinic acetylcholine receptor of Torpedo californica electric organ is incubated with [gamma-32P]ATP/Mg2+,… Expand
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Role of ascorbate in oxidative protein folding
Both in prokaryotic and eukaryotic cells, disulfide bond formation (oxidation and isomerization steps) are catalyzed exclusively in extracytoplasmic compartments. In eukaryotes, protein folding and… Expand
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Stimulation of Phosphatidylinositol Phosphorylation in the Sarcoplasmic Reticular Ca2+-Transport ATPase by Vanadate
Vanadate increases the initial phosphatidylinositolphosphate formation rate as well as the steady state level of the above lipid phosphate when phosphatidylinositol associated with the isolated Ca2+… Expand
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Identification, Characterization and Partial Purification of a Thiol-protease Which Cleaves Specifically the Skeletal Muscle Ryanodine Receptor/Ca2+ Release Channel
Abstract. A 94 kDa large subunit thiol-protease, as identified by anti-calpain antibodies, has been isolated from skeletal muscle junctional sarcoplasmic reticulum (SR). This protease cleaves… Expand
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Monoclonal antibodies to rabbit skeletal muscle phosphorylase kinase. Probes for studies of subunit function.
Monoclonal antibodies to rabbit skeletal muscle phosphorylase kinase were produced by the conventional hybridoma cell technique. 90 out of 600 hybridomas were found to produce phosphorylase kinase… Expand
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FAD Transport and FAD-dependent Protein Thiol Oxidation in Rat Liver Microsomes*
The transport of FAD and its effect on disulfide bond formation was investigated in rat liver microsomal vesicles. By measuring the intravesicular FAD-accessible space, we observed that FAD permeates… Expand
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Cardiac Sarcalumenin: Phosphorylation, Comparison with the Skeletal Muscle Sarcalumenin and Modulation of Ryanodine Receptor
Abstract. Cardiac sarcoplasmic reticulum (SR) contains an endogenous phosphorylation system that under specific conditions phosphorylates two proteins with apparent molecular masses of 150 and 130… Expand
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Endogenous, Ca2+-dependent cysteine-protease cleaves specifically the ryanodine receptor/Ca2+ release channel in skeletal muscle
The association of an endogenous, Ca2+-dependent cysteine-protease with the junctional sarcoplasmic reticulum (SR) is demonstrated. The activity of this protease is strongly stimulated by… Expand
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