Journal
TRENDS IN PLANT SCIENCE
Volume 14, Issue 10, Pages 521-529Publisher
ELSEVIER SCIENCE LONDON
DOI: 10.1016/j.tplants.2009.08.001
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Funding
- National Science Foundation [IOS-0744652]
- National Science Foundation graduate research fellowship
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Plant genomes encode large numbers of highly variable nucleotide binding leucine-rich repeat (NB-LRR) disease resistance proteins. These proteins have been studied extensively to understand their evolution and the molecular basis of their function. Multiple studies indicate that the C-terminal LRR domain plays a pivotal role in defining pathogen recognition specificity. However, a growing body of evidence suggests that the N-termini of NB-LRR proteins also function in pathogen recognition. To formulate a framework that can explain the underlying principles governing NB-LRR function while accommodating findings from different experimental systems, we present a bait and switch model. This model proposes a two-step recognition process involving interactions with both cellular cofactors (bait) and the LRR domain, which in turn activates the molecular switch leading to disease resistance.
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