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Functional assessment of the NMDA receptor variant GluN2A (R586K)

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    Rights statement: Copyright: © 2017 Marwick KFM et al. This is an open access article distributed under the terms of the Creative Commons Attribution Licence, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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  • Download as Adobe PDF

    Rights statement: Copyright: © 2017 Marwick KFM et al. This is an open access article distributed under the terms of the Creative Commons Attribution Licence, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

    Final published version, 1.79 MB, PDF document

    Licence: Creative Commons: Attribution (CC-BY)

  • Download as Adobe PDF

    Rights statement: Copyright: © 2017 Marwick KFM et al. This is an open access article distributed under the terms of the Creative Commons Attribution Licence, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

    Final published version, 1.79 MB, PDF document

    Licence: Creative Commons: Attribution (CC-BY)

https://wellcomeopenresearch.org/articles/2-20/v2
Original languageEnglish
Pages (from-to)20
JournalWellcome Open Research
Volume2
Early online date17 Mar 2017
DOIs
Publication statusE-pub ahead of print - 17 Mar 2017

Abstract

Background: The N-methyl-D-aspartate receptor (NMDAR) is an ionotropic glutamate receptor that has important roles in synaptogenesis, synaptic transmission, and synaptic plasticity. Recently, a large number of rare genetic variants have been found in NMDAR subunits in people with neurodevelopmental disorders, and also in healthy individuals. One such is the GluN2A(R586K) variant, found in a person with intellectual disability. Identifying the functional consequences, if any, of such variants allows their potential contribution to pathogenesis to be assessed. Here, we assessed the effect of the GluN2A(R586K) variant on NMDAR pore properties. Methods: We expressed recombinant NMDARs with and without the GluN2A(R586K) variant in Xenopus laevis oocytes and in primary cultured mouse neurons, and made electrophysiological recordings assessing Mg(2+) block, single-channel conductance, mean open time and current density. Results: The GluN2A(R586K) variant was not found to influence any of the properties assessed. Conclusions: Our findings suggest it is unlikely that the GluN2A(R586K) variant contributes to the pathogenesis of neurodevelopmental disorder.

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