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Analysis of Endocytosis and Ubiquitination of the BOR1 Transporter

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Plant Endosomes

Part of the book series: Methods in Molecular Biology ((MIMB,volume 1209))

Abstract

Endocytosis and membrane trafficking are the major factors controlling the abundance of plasma membrane proteins, such as transporters and receptors. We have found that Arabidopsis borate transporter BOR1 is polarly localized to the inner (stele-facing) plasma membrane domain of various root cells under boron limitation, and when boron is supplied in excess, BOR1 is rapidly transferred to the vacuole for immediate degradation. The BOR1 polarity and degradation are controlled by membrane trafficking including endocytosis. In this chapter, we describe methods for observation of endocytic trafficking of BOR1, and detection of BOR1 ubiquitination that is required for vacuolar sorting for degradation.

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Acknowledgement

This work was supported by a Grant-in-Aid for JSPS Fellows (no. 19-7094 to K.K.) from the Japan Society for the Promotion of Science, by a Grant-in-Aid for Young Scientists (Wakate B-237800060, to K.K.) from the Ministry of Education, Culture, Sports, Science and Technology, Japan, by a Grant-in-Aid for Scientific Research (to T.F.), and a Grant-in-Aid for Scientific Research Priority Areas (to T.F.) from the Ministry of Education, Culture, Sports, Science and Technology, Japan, by the NEXT program (to J.T.) from the Japanese Society for the Promotion of Science.

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Authors and Affiliations

  1. Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo, 113-8657, Japan

    Koji Kasai & Toru Fujiwara

  2. Research Faculty of Agriculture, Hokkaido University, Sapporo, 060-8589, Japan

    Junpei Takano

Authors
  1. Koji Kasai
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  2. Junpei Takano
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  3. Toru Fujiwara
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Corresponding author

Correspondence to Koji Kasai .

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Editors and Affiliations

  1. University of Wisconsin-Madison, Madison, Wisconsin, USA

    Marisa S. Otegui

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Kasai, K., Takano, J., Fujiwara, T. (2014). Analysis of Endocytosis and Ubiquitination of the BOR1 Transporter. In: Otegui, M. (eds) Plant Endosomes. Methods in Molecular Biology, vol 1209. Humana Press, New York, NY. https://doi.org/10.1007/978-1-4939-1420-3_16

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  • DOI: https://doi.org/10.1007/978-1-4939-1420-3_16

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  • Publisher Name: Humana Press, New York, NY

  • Print ISBN: 978-1-4939-1419-7

  • Online ISBN: 978-1-4939-1420-3

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