Fig. 2. (a) Template alignment and position for 3D modling of Xa21 using the HHpred server; (b) MSA of 23 LRR domains of Xa21; (c) cartoon structure of three LRRs; (d) ball and stick representation of one beta sheet of Xa21 LRR showing the distance between two C-alpha atoms; (e) LRR domain; (f) TM domain; (g) JM domain; and (h) kinase domain of the predicted Xa21 3D structure.