Gamma-secretase subunits associate in intracellular membrane compartments in Arabidopsis thaliana

© The Author 2014. Published by Oxford University Press on behalf of the Society for Experimental Biology.

Bibliographische Detailangaben
Veröffentlicht in:Journal of experimental botany. - 1985. - 65(2014), 12 vom: 05. Juli, Seite 3015-27
1. Verfasser: Smolarkiewicz, Michalina (VerfasserIn)
Weitere Verfasser: Skrzypczak, Tomasz, Michalak, Michał, Leśniewicz, Krzysztof, Walker, J Ross, Ingram, Gwyneth, Wojtaszek, Przemysław
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2014
Zugriff auf das übergeordnete Werk:Journal of experimental botany
Schlagworte:Journal Article Research Support, Non-U.S. Gov't Authophagy complex assembly endomembrane system gamma-secretase intramembrane protease localization presenilin senescence mehr... vesicular trafficking. Arabidopsis Proteins Amyloid Precursor Protein Secretases EC 3.4.-
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520 |a Gamma-secretase is a multisubunit complex with intramembrane proteolytic activity. In humans it was identified in genetic screens of patients suffering from familial forms of Alzheimer's disease, and since then it was shown to mediate cleavage of more than 80 substrates, including amyloid precursor protein or Notch receptor. Moreover, in animals, γ-secretase was shown to be involved in regulation of a wide range of cellular events, including cell signalling, regulation of endocytosis of membrane proteins, their trafficking, and degradation. Here we show that genes coding for γ-secretase homologues are present in plant genomes. Also, amino acid motifs crucial for γ-secretase activity are conserved in plants. Moreover, all γ-secretase subunits: PS1/PS2, APH-1, PEN-2, and NCT colocalize and interact with each other in Arabidopsis thaliana protoplasts. The intracellular localization of γ-secretase subunits in Arabidopsis protoplasts revealed a distribution in endomembrane system compartments that is consistent with data from animal studies. Together, our data may be considered as a starting point for analysis of γ-secretase in plants 
650 4 |a Journal Article 
650 4 |a Research Support, Non-U.S. Gov't 
650 4 |a Authophagy 
650 4 |a complex assembly 
650 4 |a endomembrane system 
650 4 |a gamma-secretase 
650 4 |a intramembrane protease 
650 4 |a localization 
650 4 |a presenilin 
650 4 |a senescence 
650 4 |a vesicular trafficking. 
650 7 |a Arabidopsis Proteins  |2 NLM 
650 7 |a Amyloid Precursor Protein Secretases  |2 NLM 
650 7 |a EC 3.4.-  |2 NLM 
700 1 |a Skrzypczak, Tomasz  |e verfasserin  |4 aut 
700 1 |a Michalak, Michał  |e verfasserin  |4 aut 
700 1 |a Leśniewicz, Krzysztof  |e verfasserin  |4 aut 
700 1 |a Walker, J Ross  |e verfasserin  |4 aut 
700 1 |a Ingram, Gwyneth  |e verfasserin  |4 aut 
700 1 |a Wojtaszek, Przemysław  |e verfasserin  |4 aut 
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