Combination of in vivo proximity labeling and co-immunoprecipitation identifies the host target network of a tumor-inducing effector in the fungal maize pathogen Ustilago maydis

© The Author(s) 2023. Published by Oxford University Press on behalf of the Society for Experimental Biology.

Bibliographische Detailangaben
Veröffentlicht in:Journal of experimental botany. - 1985. - 74(2023), 15 vom: 17. Aug., Seite 4736-4750
1. Verfasser: Shi, Wei (VerfasserIn)
Weitere Verfasser: Stolze, Sara C, Nakagami, Hirofumi, Misas Villamil, Johana C, Saur, Isabel M L, Doehlemann, Gunther
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2023
Zugriff auf das übergeordnete Werk:Journal of experimental botany
Schlagworte:Journal Article Research Support, Non-U.S. Gov't Ustilago maydis Fungal effectors TurboID maize protein interactome ubiquitin–proteasome Biotin 6SO6U10H04 mehr... Fungal Proteins Ligases EC 6.-
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520 |a Plant pathogens secrete effectors, which target host proteins to facilitate infection. The Ustilago maydis effector UmSee1 is required for tumor formation in the leaf during infection of maize. UmSee1 interacts with maize SGT1 (suppressor of G2 allele of skp1) and blocks its phosphorylation in vivo. In the absence of UmSee1, U. maydis cannot trigger tumor formation in the bundle sheath. However, it remains unclear which host processes are manipulated by UmSee1 and the UmSee1-SGT1 interaction to cause the observed phenotype. Proximity-dependent protein labeling involving the turbo biotin ligase tag (TurboID) for proximal labeling of proteins is a powerful tool for identifying the protein interactome. We have generated transgenic U. maydis that secretes biotin ligase-fused See1 effector (UmSee1-TurboID-3HA) directly into maize cells. This approach, in combination with conventional co-immunoprecipitation, allowed the identification of additional UmSee1 interactors in maize cells. Collectively, our data identified three ubiquitin-proteasome pathway-related proteins (ZmSIP1, ZmSIP2, and ZmSIP3) that either interact with or are close to UmSee1 during host infection of maize with U. maydis. ZmSIP3 represents a cell cycle regulator whose degradation appears to be promoted in the presence of UmSee1. Our data provide a possible explanation of the requirement for UmSee1 in tumor formation during U. maydis-Zea mays interaction 
650 4 |a Journal Article 
650 4 |a Research Support, Non-U.S. Gov't 
650 4 |a Ustilago maydis 
650 4 |a Fungal effectors 
650 4 |a TurboID 
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650 4 |a protein interactome 
650 4 |a ubiquitin–proteasome 
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700 1 |a Stolze, Sara C  |e verfasserin  |4 aut 
700 1 |a Nakagami, Hirofumi  |e verfasserin  |4 aut 
700 1 |a Misas Villamil, Johana C  |e verfasserin  |4 aut 
700 1 |a Saur, Isabel M L  |e verfasserin  |4 aut 
700 1 |a Doehlemann, Gunther  |e verfasserin  |4 aut 
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