The plant PRAT proteins – preprotein and amino acid transport in mitochondria and chloroplasts

Authors

  • B. Pudelski,

    1.  Biochemie und Physiologie der Pflanzen, Department Biologie I, Botanik, Ludwig-Maximilians-Universität München, Planegg-Martinsried, Germany
    2.  Munich Centre for Integrated Protein Science CiPSM, Ludwig-Maximilians-Universität München, München, Germany
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  • S. Kraus,

    1.  Biochemie und Physiologie der Pflanzen, Department Biologie I, Botanik, Ludwig-Maximilians-Universität München, Planegg-Martinsried, Germany
    2.  Munich Centre for Integrated Protein Science CiPSM, Ludwig-Maximilians-Universität München, München, Germany
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  • J. Soll,

    1.  Biochemie und Physiologie der Pflanzen, Department Biologie I, Botanik, Ludwig-Maximilians-Universität München, Planegg-Martinsried, Germany
    2.  Munich Centre for Integrated Protein Science CiPSM, Ludwig-Maximilians-Universität München, München, Germany
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  • K. Philippar

    1.  Biochemie und Physiologie der Pflanzen, Department Biologie I, Botanik, Ludwig-Maximilians-Universität München, Planegg-Martinsried, Germany
    2.  Munich Centre for Integrated Protein Science CiPSM, Ludwig-Maximilians-Universität München, München, Germany
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  • Editor
    R. Hedrich

  • This article was published online on 21 June 2010. An error was subsequently identified. This notice is included in the online and print versions to indicate that both have been corrected on 13 July 2010.

K. Philippar, Biochemie und Physiologie der Pflanzen, Department Biologie I, Botanik, Ludwig-Maximilians-Universität München, Großhadernerstr. 2-4, D-82152 Planegg-Martinsried, Germany.
E-mail: philippar@lrz.uni-muenchen.de

Abstract

The membrane proteins of the plant preprotein and amino acid transporter (PRAT) superfamily all share common structural elements, such as four membrane-spanning α-helices. Interestingly they display diverse localisation to outer and inner membranes of chloroplasts and mitochondria. Furthermore, they fulfil different functions in preprotein translocation as well as amino acid transport across these membranes. This review summarises current knowledge on precursor protein import and amino acid transport in plastids and mitochondria and provides an overview of the distinct tasks and features of members of the PRAT superfamily in the model plant Arabidopsis thaliana.

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