Projects per year
Abstract
Innate immunity relies on the perception of pathogen-associated molecular patterns (PAMPs) by pattern-recognition receptors (PRRs) located on the host cell's surface. Many plant PRRs are kinases. Here, we report that the Arabidopsis receptor kinase EF-TU RECEPTOR (EFR), which perceives the elf18 peptide derived from bacterial elongation factor Tu, is activated upon ligand binding by phosphorylation on its tyrosine residues. Phosphorylation of a single tyrosine residue, Y836, is required for activation of EFR and downstream immunity to the phytopathogenic bacterium Pseudomonas syringae. A tyrosine phosphatase, HopAO1, secreted by P. syringae, reduces EFR phosphorylation and prevents subsequent immune responses. Thus, host and pathogen compete to take control of PRR tyrosine phosphorylation used to initiate antibacterial immunity.
Original language | English |
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Pages (from-to) | 1509-1512 |
Number of pages | 4 |
Journal | Science |
Volume | 343 |
Issue number | 6178 |
DOIs | |
Publication status | Published - 28 Mar 2014 |
Keywords
- Arabidopsis
- Arabidopsis Proteins
- Bacterial Proteins
- Peptide Elongation Factor Tu
- Peptides
- Phosphorylation
- Protein Tyrosine Phosphatases
- Pseudomonas syringae
- Receptors, Pattern Recognition
- Tyrosine
Profiles
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Frank Menke
- School of Biological Sciences - Honorary Associate Professor
- The Sainsbury Laboratory - Head of Proteomics (TSL)
Person: Honorary, Research & Analogous
-
Jan Sklenar
- The Sainsbury Laboratory - Proteomics Support Officer (TSL)
Person: Research & Analogous
-
Cyril Zipfel
- The Sainsbury Laboratory - Senior Scientist (TSL)
- Plant Sciences - Member
Person: Research Group Member, Academic, Teaching & Research
Projects
- 1 Finished
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Signaling to plant immunity responses (PathoNet)
Biotechnology and Biological Sciences Research Council
1/10/09 → 30/09/12
Project: Research