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bacteria:t3e:xopj6

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bacteria:t3e:xopj6 [2025/01/27 23:10] – [Biological function] jfpothierbacteria:t3e:xopj6 [2025/02/24 15:32] (current) – [The Type III Effector XopJ6 from //Xanthomonas//] rkoebnik
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 === Genomic organization === === Genomic organization ===
  
-//xopJ6//  is present on a ca. 9-kb transposable element named Tn//6714//. It was found in multiple identical copies, likely due to recent transposition events (Lauber //et al//., 2024). Many //Xanthomonas campestris// pv. //campestris// strains do not contain any //xopJ6//gene and are still potent and adapted pathogenic strains (Lauber //et al//., 2024).+//xopJ6//  is present on a ca. 9-kb transposable element named Tn//6714//. It was found in multiple identical copies, likely due to recent transposition events (Lauber //et al//., 2024). Many //Xanthomonas campestris//  pv. //campestris//  strains do not contain any //xopJ6//gene and are still potent and adapted pathogenic strains (Lauber //et al//., 2024).
  
 === Regulation === === Regulation ===
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   * //xopJ6//  induces an hypersensitive response and ETI on the cauliflower (//Brassica oleracea//) cv. Clovis F1 (Lauber //et al//., 2024).   * //xopJ6//  induces an hypersensitive response and ETI on the cauliflower (//Brassica oleracea//) cv. Clovis F1 (Lauber //et al//., 2024).
   * //xopJ6//  induces ETI in //Arabidopsis thaliana//  in an RRS1-R- and RPS4-dependent manner (Lauber //et al//., 2024).   * //xopJ6//  induces ETI in //Arabidopsis thaliana//  in an RRS1-R- and RPS4-dependent manner (Lauber //et al//., 2024).
-  * //xopJ6 //delivered by //Pseudomonas fluorescens//  Pfo-1 induces HR in //Arabidopsis thaliana//  in an RRS1-R-, EDS1- and RPS4-dependent manner (Lauber //et al//., 2024). +  * //xopJ6//  delivered by //Pseudomonas fluorescens//  Pfo-1 induces HR in //Arabidopsis thaliana//  in an RRS1-R-, EDS1- and RPS4-dependent manner (Lauber //et al//., 2024). 
-  * //xopJ6//  is able to dampen flg22-induced PTI responses in //Nicotiana benthamiana //  (Lauber //et al//., 2024)//.//+  * //xopJ6//  is able to dampen flg22-induced PTI responses in //Nicotiana benthamiana//  (Lauber //et al//., 2024)//.//
   * //xopJ6//  quantitatively contributes to //Xanthomonas campestris//  pv. //campestris//  pathogenicity in susceptible accessions Col-0 and Sf-2 of Arabidopsis: //xopJ6//  mutants are less virulent while those overexpressing //xopJ6//  are more virulent (Lauber //et al//., 2024).   * //xopJ6//  quantitatively contributes to //Xanthomonas campestris//  pv. //campestris//  pathogenicity in susceptible accessions Col-0 and Sf-2 of Arabidopsis: //xopJ6//  mutants are less virulent while those overexpressing //xopJ6//  are more virulent (Lauber //et al//., 2024).
 === Localization === === Localization ===
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 === Enzymatic function === === Enzymatic function ===
-  + 
-Recombinant XopJ6 purified from //E. coli// encodes an acetyl transferase able to acetylate Arabidopsis WRKY22 (Lauber //et al//., 2024).+Recombinant XopJ6 purified from //E. coli//  encodes an acetyl transferase able to acetylate Arabidopsis WRKY22 (Lauber //et al//., 2024).
  
 === Interaction partners === === Interaction partners ===
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   * XopJ6 interacts with Arabidopdis RRS1-R resistance protein and WRKY22 transcription factor (Lauber //et al//., 2024).   * XopJ6 interacts with Arabidopdis RRS1-R resistance protein and WRKY22 transcription factor (Lauber //et al//., 2024).
   * A single AA substituion (N382K) abolishes interaction with Arabidopsis WRKY22 and RRS1-R and is required for ETI in Arabidopsis and cauliflower (Lauber //et al//., 2024).   * A single AA substituion (N382K) abolishes interaction with Arabidopsis WRKY22 and RRS1-R and is required for ETI in Arabidopsis and cauliflower (Lauber //et al//., 2024).
-  * WT XopJ6 and XopJ6<sup>N382K</sup> both suppress Flg22 ROS burst in a WRKY-independent manner (Lauber //et al//., 2024).+  * WT XopJ6 and XopJ6<sup>N382K</sup>   both suppress Flg22 ROS burst in a WRKY-independent manner (Lauber //et al//., 2024).
  
 ===== Conservation ===== ===== Conservation =====
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 === In xanthomonads === === In xanthomonads ===
  
-By 2024, xopJ6 has only been detected in //Xanthomonas campestris// pv. //campestris// (Lauber //et al//., 2024) and in //Xanthomonas translucens// pv. //graminis//.+By 2024, xopJ6 has only been detected in //Xanthomonas campestris//  pv. //campestris//  (Lauber //et al//., 2024) and in //Xanthomonas translucens//  pv. //graminis//. 
 === In other plant pathogens/symbionts === === In other plant pathogens/symbionts ===
  
-XopJ6 is a homolog of the type III effector PopP2 from //Rastonia pseudosolanacearum//. Homologs are also present in strains of //Collimonas// and //Duganella//.+XopJ6 is a homolog of the type III effector PopP2 from //Rastonia pseudosolanacearum//. Homologs are also present in strains of //Collimonas//  and //Duganella//.
  
 ===== References ===== ===== References =====
bacteria/t3e/xopj6.1738019414.txt.gz · Last modified: 2025/01/27 23:10 by jfpothier