論文

査読有り
2015年2月

Novel Coiled-Coil Proteins Regulate Exocyst Association with Cortical Microtubules in Xylem Cells via the Conserved Oligomeric Golgi-Complex 2 Protein

PLANT AND CELL PHYSIOLOGY
  • Yoshihisa Oda
  • ,
  • Yuki Iida
  • ,
  • Yoshinobu Nagashima
  • ,
  • Yuki Sugiyama
  • ,
  • Hiroo Fukuda

56
2
開始ページ
277
終了ページ
286
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1093/pcp/pcu197
出版者・発行元
OXFORD UNIV PRESS

Xylem vessel cells develop secondary cell walls in distinct patterns. Cortical microtubules are rearranged into distinct patterns and regulate secondary cell wall deposition; however, it is unclear how exocytotic membrane trafficking is linked to cortical microtubules. Here, we show that the novel coiled-coil proteins vesicle tethering 1 (VETH1) and VETH2 recruit EXO70A1, an exocyst subunit essential for correct patterning of secondary cell wall deposition, to cortical microtubules via the conserved oligomeric Golgi complex (COG) 2 protein. VETH1 and VETH2 encode an uncharacterized domain of an unknown function designated DUF869, and were preferentially up-regulated in xylem cells. VETH1-green fluorescent protein (GFP) and VETH2-GFP co-localized at novel vesicle-like small compartments, which exhibited microtubule plus-end-directed and end-tracking dynamics. VETH1 and VETH2 interacted with COG2, and this interaction promoted the association between cortical microtubules and EXO70A1 These results suggest that the VETH-COG2 complex ensures the correct secondary cell wall deposition pattern by recruiting exocyst components to cortical microtubules.

Web of Science ® 被引用回数 : 30

リンク情報
DOI
https://doi.org/10.1093/pcp/pcu197
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000351514000010&DestApp=WOS_CPL

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