Ménage à trois: the complex relationships between mitogen-activated protein kinases, WRKY transcription factors, and VQ-motif-containing proteins

Plant Signaling & Behavior
Martin WeyheJustin Lee

Abstract

Out of the 34 members of the VQ-motif-containing protein (VQP) family, 10 are phosphorylated by the mitogen-activated protein kinases (MAPKs), MPK3 and MPK6. Most of these MPK3/6-targeted VQPs (MVQs) interacted with specific sub-groups of WRKY transcription factors in a VQ-motif-dependent manner. In some cases, the MAPK appears to phosphorylate either the MVQ or the WRKY, while in other cases, both proteins have been reported to act as MAPK substrates. We propose a network of dynamic interactions between members from the MAPK, MVQ and WRKY families - either as binary or as tripartite interactions. The compositions of the WRKY-MVQ transcriptional protein complexes may change - for instance, through MPK3/6-mediated modulation of protein stability - and therefore control defense gene transcription.

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Citations

May 31, 2015·Plant Science : an International Journal of Experimental Plant Biology·Liyuan ZhangQingxi J Shen
Aug 2, 2016·Nature Reviews. Immunology·Daniel Couto, Cyril Zipfel
May 1, 2019·Molecular Plant-microbe Interactions : MPMI·Zhiqin LiuShuilin He
Nov 19, 2015·Frontiers in Plant Science·Justin LeeDierk Scheel
Mar 22, 2019·Scientific Reports·José Garrido-GalaJosé L Caballero
Dec 15, 2020·Plant Physiology and Biochemistry : PPB·Guibo YuanHaidong Ding
Feb 20, 2021·Frontiers in Plant Science·José LeónMari-Cruz Castillo

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