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A hydrophobic anchor mechanism defines a deacetylase family that suppresses host response against YopJ effectors

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  • Marco Bürger

    (Salk Institute for Biological Studies)

  • Björn C. Willige

    (Salk Institute for Biological Studies)

  • Joanne Chory

    (Salk Institute for Biological Studies
    Salk Institute for Biological Studies)

Abstract

Several Pseudomonas and Xanthomonas species are plant pathogens that infect the model organism Arabidopsis thaliana and important crops such as Brassica. Resistant plants contain the infection by rapid cell death of the infected area through the hypersensitive response (HR). A family of highly related α/β hydrolases is involved in diverse processes in all domains of life. Functional details of their catalytic machinery, however, remained unclear. We report the crystal structures of α/β hydrolases representing two different clades of the family, including the protein SOBER1, which suppresses AvrBsT-incited HR in Arabidopsis. Our results reveal a unique hydrophobic anchor mechanism that defines a previously unknown family of protein deacetylases. Furthermore, this study identifies a lid-loop as general feature for substrate turnover in acyl-protein thioesterases and the described family of deacetylases. Furthermore, we found that SOBER1’s biological function is not restricted to Arabidopsis thaliana and not limited to suppress HR induced by AvrBsT.

Suggested Citation

  • Marco Bürger & Björn C. Willige & Joanne Chory, 2017. "A hydrophobic anchor mechanism defines a deacetylase family that suppresses host response against YopJ effectors," Nature Communications, Nature, vol. 8(1), pages 1-11, December.
    • Handle: RePEc:nat:natcom:v:8:y:2017:i:1:d:10.1038_s41467-017-02347-w
    DOI: 10.1038/s41467-017-02347-w
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    Cited by:

    1. Odín Morón-García & Gina A Garzón-Martínez & M J Pilar Martínez-Martín & Jason Brook & Fiona M K Corke & John H Doonan & Anyela V Camargo Rodríguez, 2022. "Genetic architecture of variation in Arabidopsis thaliana rosettes," PLOS ONE, Public Library of Science, vol. 17(2), pages 1-22, February.

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