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A wheat resistosome defines common principles of immune receptor channels.
Förderer, Alexander; Li, Ertong; Lawson, Aaron W; Deng, Ya-Nan; Sun, Yue; Logemann, Elke; Zhang, Xiaoxiao; Wen, Jie; Han, Zhifu; Chang, Junbiao; Chen, Yuhang; Schulze-Lefert, Paul; Chai, Jijie.
Afiliación
  • Förderer A; Institute of Biochemistry, University of Cologne, Cologne, Germany.
  • Li E; Max Planck Institute for Plant Breeding Research, Cologne, Germany.
  • Lawson AW; Institute of Biochemistry, University of Cologne, Cologne, Germany.
  • Deng YN; Max Planck Institute for Plant Breeding Research, Cologne, Germany.
  • Sun Y; Max Planck Institute for Plant Breeding Research, Cologne, Germany.
  • Logemann E; State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, China; Innovative Academy of Seed Design, Chinese Academy of Sciences, Beijing, China.
  • Zhang X; College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, Beijing, China.
  • Wen J; Beijing Advanced Innovation Center for Structural Biology, Tsinghua-Peking Joint Center for Life Sciences, Center for Plant Biology, School of Life Sciences, Tsinghua University, Beijing, China.
  • Han Z; Max Planck Institute for Plant Breeding Research, Cologne, Germany.
  • Chang J; Beijing Advanced Innovation Center for Structural Biology, Tsinghua-Peking Joint Center for Life Sciences, Center for Plant Biology, School of Life Sciences, Tsinghua University, Beijing, China.
  • Chen Y; Beijing Advanced Innovation Center for Structural Biology, Tsinghua-Peking Joint Center for Life Sciences, Center for Plant Biology, School of Life Sciences, Tsinghua University, Beijing, China.
  • Schulze-Lefert P; Beijing Advanced Innovation Center for Structural Biology, Tsinghua-Peking Joint Center for Life Sciences, Center for Plant Biology, School of Life Sciences, Tsinghua University, Beijing, China.
  • Chai J; Henan Key Laboratory of Organic Functional Molecules and Drug Innovation, Henan Normal University, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, China.
Nature ; 610(7932): 532-539, 2022 10.
Article en En | MEDLINE | ID: mdl-36163289
Plant intracellular nucleotide-binding leucine-rich repeat receptors (NLRs) detect pathogen effectors to trigger immune responses1. Indirect recognition of a pathogen effector by the dicotyledonous Arabidopsis thaliana coiled-coil domain containing NLR (CNL) ZAR1 induces the formation of a large hetero-oligomeric protein complex, termed the ZAR1 resistosome, which functions as a calcium channel required for ZAR1-mediated immunity2-4. Whether the resistosome and channel activities are conserved among plant CNLs remains unknown. Here we report the cryo-electron microscopy structure of the wheat CNL Sr355 in complex with the effector AvrSr356 of the wheat stem rust pathogen. Direct effector binding to the leucine-rich repeats of Sr35 results in the formation of a pentameric Sr35-AvrSr35 complex, which we term the Sr35 resistosome. Wheat Sr35 and Arabidopsis ZAR1 resistosomes bear striking structural similarities, including an arginine cluster in the leucine-rich repeats domain not previously recognized as conserved, which co-occurs and forms intramolecular interactions with the 'EDVID' motif in the coiled-coil domain. Electrophysiological measurements show that the Sr35 resistosome exhibits non-selective cation channel activity. These structural insights allowed us to generate new variants of closely related wheat and barley orphan NLRs that recognize AvrSr35. Our data support the evolutionary conservation of CNL resistosomes in plants and demonstrate proof of principle for structure-based engineering of NLRs for crop improvement.
Asunto(s)

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Proteínas de Plantas / Triticum / Receptores Inmunológicos / Canales de Calcio / Microscopía por Crioelectrón / Proteínas NLR Idioma: En Revista: Nature Año: 2022 Tipo del documento: Article País de afiliación: Alemania Pais de publicación: Reino Unido

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Proteínas de Plantas / Triticum / Receptores Inmunológicos / Canales de Calcio / Microscopía por Crioelectrón / Proteínas NLR Idioma: En Revista: Nature Año: 2022 Tipo del documento: Article País de afiliación: Alemania Pais de publicación: Reino Unido