Abstract
To investigate the function of plant plasma membrane, proteins of rice plasma membrane were analyzed and the proteins changed by cold stress were identified. Plasma membrane proteins were purified with an aqueous two-phase partitioning method from root of rice seedlings, and activity of specific H -ATPase localized in plasma membranes was measured. The plasma membrane proteins were separated by SDS-PAGE or 2D-PAGE, and analyzed with nano LCMS/ MS. The number of transmembrane helices was predicted from the amino acid sequence of annotated proteins. Functional categorization revealed that the most of proteins were associated with energy production, signal transduction, protein synthesis, cell growth/division and defense. In addition, 12 cold stress responsive proteins were identified from the plasma membrane using 2D-PAGE based proteomics method. Out of them, cold shock protein-1 was significantly decreased in plasma membrane of rice under cold stress.
Keywords: Rice, Root, Plasma membrane, SDS-PAGE, 2D-PAGE, Cold stress
Protein & Peptide Letters
Title: Proteome Analysis of Rice Root Plasma Membrane and Detection of Cold Stress Responsive Proteins
Volume: 16 Issue: 6
Author(s): Makoto Hashimoto, Mahmoud Toorchi, Keiko Matsushita, Yukimoto Iwasaki and Setsuko Komatsu
Affiliation:
Keywords: Rice, Root, Plasma membrane, SDS-PAGE, 2D-PAGE, Cold stress
Abstract: To investigate the function of plant plasma membrane, proteins of rice plasma membrane were analyzed and the proteins changed by cold stress were identified. Plasma membrane proteins were purified with an aqueous two-phase partitioning method from root of rice seedlings, and activity of specific H -ATPase localized in plasma membranes was measured. The plasma membrane proteins were separated by SDS-PAGE or 2D-PAGE, and analyzed with nano LCMS/ MS. The number of transmembrane helices was predicted from the amino acid sequence of annotated proteins. Functional categorization revealed that the most of proteins were associated with energy production, signal transduction, protein synthesis, cell growth/division and defense. In addition, 12 cold stress responsive proteins were identified from the plasma membrane using 2D-PAGE based proteomics method. Out of them, cold shock protein-1 was significantly decreased in plasma membrane of rice under cold stress.
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Cite this article as:
Hashimoto Makoto, Toorchi Mahmoud, Matsushita Keiko, Iwasaki Yukimoto and Komatsu Setsuko, Proteome Analysis of Rice Root Plasma Membrane and Detection of Cold Stress Responsive Proteins, Protein & Peptide Letters 2009; 16 (6) . https://dx.doi.org/10.2174/092986609788490140
DOI https://dx.doi.org/10.2174/092986609788490140 |
Print ISSN 0929-8665 |
Publisher Name Bentham Science Publisher |
Online ISSN 1875-5305 |
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