Plant glycosylphosphatidylinositol anchored proteins at the plasma membrane-cell wall nexus

查看全文 作　　者：Trevor [1,2]H.Yeats;Antony [3,4]Bacic;Kim [3,4]L.Johnson

机构地区：[1]School of Integrated Plant Sciences, Section of Plant Biology, Cornell University;[2]Robert W.Holley Center for Agriculture and Health, USDA-ARS, Cornell University;[3]Australian Research Council Centre of Excellence in Plant Cell Walls, School of Bio Sciences, University of Melbourne;[4]La Trobe Institute for Agriculture & Food, Department of Animal, Plant and Soil Sciences, La Trobe University

出　　处：《Journal of Integrative Plant Biology》索引2018年第60卷第8期,共21页

基　　金：supported by the ARC Centre of Excellence in Plant Cell Walls grant (CE1101007);supported by a postdoctoral fellowship from the Philomathia Foundation 摘　　要：Approximately 1% of plant proteins are predicted to be post-translationally modified with a glycosylphosphatidylinositol(GPI) anchor that tethers the polypeptide to the outer leaflet of the plasma membrane. Whereas the synthesis and structure of GPI anchors is largely conserved across eukaryotes, the repertoire of functional domains present in the GPI-anchored proteome has diverged substantially. In plants, this includes a large fraction of the GPI-anchored proteome being further modified with plant-specific arabinogalactan(AG) O-glycans. The impor tance of the GPI-anchored proteome to plant development is underscored by the fact that GPI biosynthetic null mutants exhibit embryo lethality. Mutations in genes encoding specific GPI-anchored proteins(GAPs) further supports their contribution to diverse biological processes, occurring at the interface of the plasma membrane and cell wall including signaling, cell wall metabolism, cell wall polymer cross-linking, and plasmodesmatal transport. Here, we review the literature concerning plant GPI-anchored proteins, in the context of their potential to act as molecular hubs that mediate interactions between the plasma membrane and the cell wall, and their potential to transduce the signal into the protoplast and, thereby, activate signa transduction pathways. 关键词：植物蛋白质抛锚房间浆膜 proteome GLY 连结 GPL

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Plant glycosylphosphatidylinositol anchored proteins at the plasma membrane-cell wall nexus

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