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Mayadevi, M and Lakshmi, K and Suma Priya , SD and Sebastian , John and Omkumar, RV (2016) Protection of α-CaMKII from Dephosphorylationby GluN2B Subunitof NMDA Receptor Is Abolished by Mutation of Glu96 or His282 of α-CaMKII. PloS one. ISSN 1932-6203

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Abstract

Interaction of CaMKII and the GluN2B subunit of NMDA receptor is essential for synaptic plasticity events such as LTP. Synaptic targeting of CaMKII and regulation of its biochemical functions result from this interaction. GluN2B binding to the T-site of CaMKII leads to changes in substrate binding and catalytic parameters and inhibition of its own dephosphorylation. We find that CaMKIINα, a natural inhibitor that binds to the T-site of CaMKII, also causes inhibition of dephosphorylation of CaMKII similar to GluN2B. Two residues on α-CaMKII, Glu96 and His282, are involved in the inhibition of CaMKII dephosphorylation exerted by binding of GluN2B. E96A-α-CaMKII is known to be defective in GluN2B-induced catalytic modulation. Data presented here show that, in both E96A and H282A mutants of α-CaMKII, GluN2B-induced inhibition of dephosphorylation is impaired

Item Type: Article
Subjects: Molecular Neurobiology
Depositing User: Rgcb Library
Date Deposited: 22 Mar 2017 09:01
Last Modified: 22 Mar 2017 09:01
URI: http://rgcb.sciencecentral.in/id/eprint/315

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