Fig. 6

The distribution of N⁺ of the plant LRR-RLKs extracellular domains. a N⁺ distribution of the plant LRR-RLK extracellular domains from different species in different SGs. The N sites in NxS/T (x ≠ P) are noted as N⁺ for short. N⁺ per 100 amino acids of the ECDs was calculated and showed as a heatmap using the R package pheatmap [27]. b The types of N⁺ in each SG. The number of NxS (x ≠ P) and NxT (x ≠ P) motifs in different SGs was determined. c N⁺ distribution of the plant LRR-RLKs ECDs internal or external to LRR motifs. N⁺ locations in the range from the start point of the indicted LRR motifs to the start point of the LRR motifs plus 24 were considered as N-glycosylation sites located in LRRs