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Plant heterotrimeric G protein beta subunit is associated with membranes via protein interactions involving coiled-coil formation

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  • Obrdlik, P.

    (Center for Mathematical Economics, Bielefeld University)

  • Neuhaus, G.

    (Center for Mathematical Economics, Bielefeld University)

  • Merkle, Thomas

    (Center for Mathematical Economics, Bielefeld University)

Abstract

Gbeta subunits from animals are anchored to membranes via Ggamma subunits. No Ggamma has been identified in plants to date. Using differential centrifugation of Arabidopsis and broccoli extracts, Gbeta was highly enriched in the microsomal pellet. Treatment of microsomes with detergents and salts indicates that plant Gbeta is located at the membrane surface and attached to membranes by hydrophobic interactions. Analysis of transgenic plants expressing Gbeta-GFP fusion proteins showed that mutations in the heptad repeat domain of Gbeta severely diminished their membrane association. We propose that plant Gbeta is anchored to membranes by an unknown protein similar to animal Gbeta by Ggamma, via coiled-coil formation.

Suggested Citation

  • Obrdlik, P. & Neuhaus, G. & Merkle, Thomas, 2016. "Plant heterotrimeric G protein beta subunit is associated with membranes via protein interactions involving coiled-coil formation," Center for Mathematical Economics Working Papers 476, Center for Mathematical Economics, Bielefeld University.
  • Handle: RePEc:bie:wpaper:476
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    Cited by:

    1. Kate Hynes & Jie Ma & Cheng Yuan, 2017. "Transport Infrastructure Investments and Competition for FDI," Working Papers 201718, School of Economics, University College Dublin.
    2. Krishanu Karmakar & Jorge Martinez-Vazquez, 2014. "Fiscal Competition versus Fiscal Harmonization: A Review of the Arguments," International Center for Public Policy Working Paper Series, at AYSPS, GSU paper1431, International Center for Public Policy, Andrew Young School of Policy Studies, Georgia State University.
    3. Sanz Córdoba, Patricia & Theilen, Bernd, 1965-, 2017. "Strategic Responses to International Tax Competition: Fiscal (De) Centralization versus Partial Tax Harmonization," Working Papers 2072/306513, Universitat Rovira i Virgili, Department of Economics.
    4. Yutao Han & Patrice Pieretti & Benteng Zou, 2013. "The Dynamics of the Location of Firms – A Revisit of Home-Attachment under Tax Competition," CREA Discussion Paper Series 13-15, Center for Research in Economic Analysis, University of Luxembourg.

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