Fig. 2
From: Q&A: what are brassinosteroids and how do they act in plants?
Brassinolide induces BRI1 heterodimerization with SERKs. a Overall structure of BL bound by BRI1LRR (green) shown as a structure graphic. BL (pink) is shown as a stick diagram. The island domain of BRI1 is shown in grey. ‘N’ and ‘C’ represent the N-terminal and C-terminal side of BRI1LRR, respectively. b Crystal structure of BRI1LRR-BL-BAK1LRR complex. BAK1LRR is shown in pale green