Mitofusin-2 independent juxtaposition of endoplasmic reticulum and mitochondria: an ultrastructural study.

Besides its role in controlling the morphology of mitochondria, mitofusin-2 has been proposed to tether mitochondria to the endoplasmic reticulum (ER), based largely on light microscopic analysis. In this study we have examined by electron microscopy the organization of ER and mitochondria in cells...

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Main Authors: Pierre Cosson, Anna Marchetti, Mariella Ravazzola, Lelio Orci
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2012-01-01
Series:PLoS ONE
Online Access:http://europepmc.org/articles/PMC3460865?pdf=render
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author Pierre Cosson
Anna Marchetti
Mariella Ravazzola
Lelio Orci
author_facet Pierre Cosson
Anna Marchetti
Mariella Ravazzola
Lelio Orci
author_sort Pierre Cosson
collection DOAJ
description Besides its role in controlling the morphology of mitochondria, mitofusin-2 has been proposed to tether mitochondria to the endoplasmic reticulum (ER), based largely on light microscopic analysis. In this study we have examined by electron microscopy the organization of ER and mitochondria in cells expressing or not mitofusin-2. Contrary to previous studies, we observed that loss of mitofusin-2 increased ER-mitochondria juxtaposition. These results suggest that mitofusin-2 does not play a critical role in the juxtapostion of ER and mitochondria, and highlight the essential role of ultrastructural analysis to visualize and measure contact between two intracellular compartments.
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spelling doaj.art-b1c9a214dff2453997ac5e6af6d6c84a2022-12-21T19:43:47ZengPublic Library of Science (PLoS)PLoS ONE1932-62032012-01-0179e4629310.1371/journal.pone.0046293Mitofusin-2 independent juxtaposition of endoplasmic reticulum and mitochondria: an ultrastructural study.Pierre CossonAnna MarchettiMariella RavazzolaLelio OrciBesides its role in controlling the morphology of mitochondria, mitofusin-2 has been proposed to tether mitochondria to the endoplasmic reticulum (ER), based largely on light microscopic analysis. In this study we have examined by electron microscopy the organization of ER and mitochondria in cells expressing or not mitofusin-2. Contrary to previous studies, we observed that loss of mitofusin-2 increased ER-mitochondria juxtaposition. These results suggest that mitofusin-2 does not play a critical role in the juxtapostion of ER and mitochondria, and highlight the essential role of ultrastructural analysis to visualize and measure contact between two intracellular compartments.http://europepmc.org/articles/PMC3460865?pdf=render
spellingShingle Pierre Cosson
Anna Marchetti
Mariella Ravazzola
Lelio Orci
Mitofusin-2 independent juxtaposition of endoplasmic reticulum and mitochondria: an ultrastructural study.
PLoS ONE
title Mitofusin-2 independent juxtaposition of endoplasmic reticulum and mitochondria: an ultrastructural study.
title_full Mitofusin-2 independent juxtaposition of endoplasmic reticulum and mitochondria: an ultrastructural study.
title_fullStr Mitofusin-2 independent juxtaposition of endoplasmic reticulum and mitochondria: an ultrastructural study.
title_full_unstemmed Mitofusin-2 independent juxtaposition of endoplasmic reticulum and mitochondria: an ultrastructural study.
title_short Mitofusin-2 independent juxtaposition of endoplasmic reticulum and mitochondria: an ultrastructural study.
title_sort mitofusin 2 independent juxtaposition of endoplasmic reticulum and mitochondria an ultrastructural study
url http://europepmc.org/articles/PMC3460865?pdf=render
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AT mariellaravazzola mitofusin2independentjuxtapositionofendoplasmicreticulumandmitochondriaanultrastructuralstudy
AT lelioorci mitofusin2independentjuxtapositionofendoplasmicreticulumandmitochondriaanultrastructuralstudy