Abstract
Gangliosides elicited complex effects on in vitro protein phosphorylation in rat brain membrane preparations. Gangliosides stimulated the phosphorylation of several phosphoproteins in brain membrane in a pattern qualitatively similar to calmodulin. The stimulation was completely dependent on the presence of Ca++. Di- and tri-sialogangliosides were more effective in stimulating phosphorylation. Gangliosides also inhibited the phosphorylation on a 78K protein in brain membrane and the myeline basic proteins in purified myelin preparations. Inhibition appeared to be an effect on C-kinase. GT1b was the most effective inhibitor of myelin basic protein phosphorylation. The results indicate that gangliosides may be the first physiological agents which can differentiate between C-kinase and calmodulin-dependent kinase.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 1987 Springer-Verlag Berlin Heidelberg
About this paper
Cite this paper
Yu, R.K. (1987). Gangliosides as Differential Modulators of Protein Phosphorylation. In: Rahmann, H. (eds) Gangliosides and Modulation of Neuronal Functions. NATO ASI Series, vol 7. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-71932-5_48
Download citation
DOI: https://doi.org/10.1007/978-3-642-71932-5_48
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-71934-9
Online ISBN: 978-3-642-71932-5
eBook Packages: Springer Book Archive