Back

BIK1-RIN4 complex links plant immunity and pathogen virulence

Lee, H.; Ko, D.; Kang, H.; Kim, S. H.; El Kasmi, F.; Dangl, J. L.; Chung, E.-H.

2025-09-07 plant biology
10.1101/2025.09.03.673898 bioRxiv
Show abstract

Plants deploy receptor-like cytoplasmic kinases (RLCKs) and the immune hub protein RIN4 to coordinate PAMPs-triggered immunity (PTI). Here, we show that BIK1, but not its close homolog PBL1, dynamically strengthens the interaction with RIN4 upon flg22 perception, thereby promoting phosphorylation of RIN4 at S141 and potentiating PTI responses. We further demonstrate that the bacterial type III effector AvrB disrupts the BIK1-RIN4 association through phosphorylation of RIN4 at T166, abolishing complex formation and attenuating BIK1-RIN4 complex-dependent PTI. These findings newly elucidate the BIK1-RIN4 complex as a convergent node of plant immunity and effector targeting, providing insight into the molecular arms race between host defenses and pathogen virulence strategies.

Matching journals

The top 6 journals account for 50% of the predicted probability mass.

50% of probability mass above

"Similar papers" are the closest papers from that journal in the model's embedding space. They show what the match is built on, but the ranking comes mostly from a classifier over the whole training set, not from these examples alone.