Fig. 4

The LRR motif signatures in plant LRR-RLKs SG_vii, SG_x, SG_xi and SG_xii with more than 20 LRR repeats. a The consensus sequences of the LRR motif. b The model of a plant LRR unit. c The model of LRR stacking of continuous LRR repeats. Typical extracellular LRR architectures (based on PDB code 3RGZ) are shown. The LxxLxLxxN motifs were taken as the internal side of the superhelix, the xLsG motifs were taken as the lateral of the superhelix, and the xIPxxLxxLxx motifs were taken as the external side of the superhelix. The motifs are shown in magenta, cyan, and yellow, respectively. d The average solvent accessibility of LRR motifs. The solvent accessibility of the LRR-RLKs extracellular domains was predicted in the SCRACH-1D program [31]. The average solvent accessibility value of residues in LRR motifs predicted by ACCpro20 is shown