Figure 10.

Universal co-receptors: SERK family of LRR-RKs, SERK1 (PDB ID 4LSC), SERK2 (PDB ID 5GQR), BAK1/SERK3 (PDB ID 4MN8), and SERK4 have been found to act as co-receptors for large LRR-RKs. Here SERK1, SERK2, and BAK1 ectodomains (shown in slate colored surface representation) are interacting with the C-terminal region of the HAESA (PDB ID 5IYX), PSKR1 (PDB ID 4Z63), TDR/PXY (5GQR), and FLS2 (4MNA) ectodomains respectively. The peptide ligands are shown in red spheres. The large LRR ectodomain structures are shown via cartoon representation.