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10.1007/s00418-007-0317-3
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Título: | Low temperature (15ºC) induces COPII dissociation from membranes and slow exit from the endoplasmic reticulum in HeLa cells |
Fecha de publicación: | 11-ago-2007 |
Editorial: | Springer |
Palabras clave: | Clathrin Immunofluorescence Quantitative immunoelectron microscopy Low temperature |
Resumen: | Low temperature induces a transport blockade at the endoplasmic reticulum-Golgi intermediate compartment (ERGIC) in cultured cells. Our previous studies support that the primary effect of low temperature is the detachment of COPI complexes from membranes. In the present study, we have used immunofluorescence and cryoimmunoelectron microscopy to investigate the effects of low temperature on both COPII and clathrin coat complexes in HeLa cells. Strikingly, COPII proteins moved from membranes to the cytosol at 15ºC, accumulating into electron-dense areas. In agreement with this observation, we also showed that ER exit is delayed in cells cultured at this temperature. By contrast, clathrin coat is not affected. Together, our results demonstrate that low temperature induces COPII dissociation from membranes and slow exit from the endoplasmic reticulum. |
Autor/es principal/es: | Martínez-Alonso, Emma Tomás, Mónica Ballesta Germán, José Martínez-Menárguez, José Ángel |
Facultad/Departamentos/Servicios: | Facultades, Departamentos, Servicios y Escuelas::Departamentos de la UMU::Biología Celular e Histología |
URI: | http://hdl.handle.net/10201/105593 |
DOI: | 10.1007/s00418-007-0317-3 |
Tipo de documento: | info:eu-repo/semantics/article |
Número páginas / Extensión: | 19 |
Derechos: | info:eu-repo/semantics/openAccess Attribution-NonCommercial-NoDerivatives 4.0 Internacional |
Aparece en las colecciones: | Artículos: Biología Celular e Histología |
Ficheros en este ítem:
Fichero | Descripción | Tamaño | Formato | |
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Martinez-Alonso et al-revised.pdf | 1,96 MB | Adobe PDF | Visualizar/Abrir |
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