Journal Article

A TSPO-related protein localizes to the early secretory pathway in Arabidopsis, but is targeted to mitochondria when expressed in yeast

Celine Vanhee, Stéphanie Guillon, Danièle Masquelier, Hervé Degand, Magali Deleu, Pierre Morsomme and Henri Batoko

in Journal of Experimental Botany

Published on behalf of Society for Experimental Biology

Volume 62, issue 2, pages 497-508
Published in print January 2011 | ISSN: 0022-0957
Published online September 2010 | e-ISSN: 1460-2431 | DOI:

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AtTSPO is a TspO/MBR domain-protein potentially involved in multiple stress regulation in Arabidopsis. As in most angiosperms, AtTSPO is encoded by a single, intronless gene. Expression of AtTSPO is tightly regulated both at the transcriptional and post-translational levels. It has been shown previously that overexpression of AtTSPO in plant cell can be detrimental, and the protein was detected in the endoplasmic reticulum (ER) and Golgi stacks, contrasting with previous findings and suggesting a mitochondrial subcellular localization for this protein. To ascertain these findings,...

Keywords: Abiotic stress; Arabidopsis; membrane protein; sorting; TSPO; yeast

Journal Article.  7659 words.  Illustrated.

Subjects: Plant Sciences and Forestry

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