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2018全国植物生物学大会

作者： Pengwei Wang Roman Pleskot Jingze Zang Joanna Winkler Jie Wang Klaas Yperman Jinli Gong Kun Wang Yajie Guan Patrick Duckney Christine Richardson Michael VANDorpe Jindriska Fiserova Daniel Van Damme Patrick J.Hussey Key Laboratory of Horticultural Plant Biology (MOE) College of Horticulture and Forestry SciencesHuazhong Agricultural University Department of Biosciences Durham University Ghent University Department of Plant Biotechnology and Bioinformatics Department of Biology of the Cell Nucleus Institute of Molecular Genetics CAS

Plants evolved their own strategy to form the essential link between the endoplasmic reticulum(ER) and the plasma membrane(PM) through a complex including NET3 C and VAP27(Wang et al 2014,Curr Biol).However,the function of plant ER-PM contact sites has not been fully *** this study,we have identified a function for ER-PM contact sites(EPCS) in plants and that is in the autophagosome biogenesis pathway,in concert with actin cytoskeleton and the Arabidopsis EH ***1 and AtEH2 are components of the endocytic TPLATE complex which is known to be essential for endocytosis in plants(Gadeyne et al.,2014,Cell).Both proteins(from now on termed AtEH/Pan1) share high sequence similarity with the yeast ARP2/3 complex activator,Pan1 *** AtEH/Panl proteins localise to the plasma membrane and autophagosomes,and their autophagosome membrane recruitment requires its N-terminal EH domains which interact with *** induction of autophagy,AtEH/Pan1 proteins recruit TPC and AP-2 subunitsand ARP2/3 proteins onto the autophagosome *** expression of AtEH1/Pan1 boosts autophagosome formation and suggest independent and redundant pathways for actin mediated autophagy in ***,AtEH/Pan1 regulated autophagosomes are found associated with EPCS where AtEH/Panl interacts with *** knock-down expression of either AtEH/Pan1 or VAP27-1 are more susceptible to nutrient depleted conditions,indicating defective *** conclusion,our results suggest that AtEH/Pan1 proteins regulate an autophagosome-dependent degradation pathway which starts at the EPCS through its interaction with VAP27-1 and merges with endocytic pathways.

关键词： membrane contact sites Autophagy Actin cytoskeleton Panlp TPLATE

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Proximity labeling: an emerging tool for probing in planta molecular interactions

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Plant Communications 2021年第2期2卷 1-15页

作者： Xinxin Yang Zhiyan Wen Dingliang Zhang Zhen Li Dawei Li Ugrappa Nagalakshmi Savithramma P.Dinesh-Kumar Yongliang Zhang State Key Laboratory of Agro-Biotechnology and Ministry of Agriculture Key Laboratory of Soil Microbiology College of Biological SciencesChina Agricultural UniversityBeijing 100193P.R.China State Key Laboratory of Plant Physiology and Biochemistry College of Biological SciencesChina Agricultural UniversityBeijing 100193China Department of Plant Biology and the Genome Center College of Biological SciencesUniversity of CaliforniaDavisDavisCA 95616USA

Protein–protein interaction(PPI)networks are key to nearly all aspects of cellular ***,the identification of PPIs is important for understanding a specific biological process in an *** with conventional methods for probing PPIs,the recently described proximity labeling(PL)approach combined with mass spectrometry(MS)-based quantitative proteomics hasemerged as apowerful approach for characterizing ***,the application of PL in planta remains in its ***,we summarize recent progress in PL and its potential utilization in plant *** specifically summarize advances in PL,including the development and comparison of different PL enzymes and the application of PL for deciphering various molecular interactions in different organisms with an emphasis on plant systems.

关键词： protein interactions proximity labeling biotin ligase plant membrane contact sites organelles

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