Disease resistance (R) protein that specifically recognizes the AvrRpm1 type III effector avirulence protein from Pseudomonas syringae (PubMed:9861059). Resistance proteins guard the plant against pathogens that contain an appropriate avirulence protein via an indirect interaction with this avirulence protein (PubMed:9861059). That triggers a defense system including the hypersensitive response (HR), which restricts the pathogen growth (PubMed:9861059). Acts via its interaction with RIN4, and probably triggers the plant resistance when RIN4 is phosphorylated by AvrRpm1. It is then degraded at the onset of the hypersensitive response (PubMed:9861059). Interacts directly with RIN4 via its N-terminal region. Interacts (via N-terminus) with RIN2 and RIN3 (via C-terminus). Interacts with TIP49A, a protein known to interact with the TATA binding protein complex (TBP) (PubMed:11955429, PubMed:12062092, PubMed:16212605). Binds to MORC1/CRT1 (PubMed:20332379). Interacts, via its NB-ARC domain, with RIN13 (PubMed:15722472). The LRR repeats probably act as specificity determinant of pathogen recognition. Belongs to the disease resistance NB-LRR family. Functional and comparative genomics of disease resistance gene homologs