エンドウ トシヤ   ENDO TOSHIYA
  遠藤 斗志也
   所属   京都産業大学  生命科学部 先端生命科学科
   職種   客員教授
言語種別 英語
発行・発表の年月 2011/09
形態種別 研究論文
査読 査読あり
標題 In vivo protein-interaction mapping of a mitochondrial translocator protein Tom22 at work
執筆形態 その他
掲載誌名 PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
出版社・発行元 NATL ACAD SCIENCES
巻・号・頁 108(37),pp.15179-15183
著者・共著者 Takuya Shiota,Hide Mabuchi,Sachiko Tanaka-Yamano,Koji Yamano,Toshiya Endo
概要 Mitochondrial protein import requires cooperation of the machineries called translocators in the outer and inner mitochondrial membranes. Here we analyze the interactions of Tom22, a multifunctional subunit of the outer membrane translocator TOM40 complex, with other translocator subunits such as Tom20, Tom40, and Tim50 and with substrate precursor proteins at a spatial resolution of the amino acid residue by in vivo and in organello site-specific photocross-linking. Changes in cross-linking patterns caused by excess substrate precursor proteins or presequence peptides indicate how the cytosolic receptor domain of Tom22 accepts substrate proteins and how the intermembrane space domain of Tom22 transfers them to Tim50 of the inner-membrane translocator.
DOI 10.1073/pnas.1105921108
ISSN 0027-8424