Figure 3.

Recognition mechanism of TDIF by PXY. (A) Overview interaction of TDIF with PXY^LRR. The side chains of PXY^LRR are shown in yellow orange. Red dashed lines indicate hydrogen bonds or salt bridges. (B) Interaction of the N-terminal side of TDIF with PXY^LRR. (C) Interaction of the central region of TDIF with PXY^LRR. For (B and C), the side chains of some amino acids from TDIF and PXY^LRR are shown in purple and yellow orange, respectively. Red dashed lines indicate hydrogen bonds or salt bridges. (D) Sequence alignment of PXY^LRR with other CLE receptors around the TDIF binding region. Conserved and similar residues are boxed with red ground and red font, respectively. Conserved motifs are boxed with blue frames.