The TN class of plant NLRs clusters outside of the 4 major plant NLR unimeal app subclades. Additionally, 3 Arabidopsis NLRs and 3 rice NLR cluster outside of the 4 major plant NLR subclades or the TN class. CC, coiled-coil; JTT, Jones–Taylor–Thornton; NB-ARC, nucleotide-binding adaptor shared by APAF-1, certain R gene products, and CED-4; NLR, […]