Figure 1.

Phylogenetic trees, conserved domain alignment and predicted 3D structure of AKT2 and HAK1 proteins in plants and algae. (a) Phylogenetic trees of AKT2 and HAK1 proteins in representative species of major lineage of plants and algae (See Figure S1 for all 1KP species). The maximum likelihood was used to construct the trees. Clades are indicated by different colours. (b) Conserved domain alignment of AKT2s and HAK1s. The high conserved K⁺ selective filter in AKT2s and a putative K⁺ selective filter in HAK1s in eight representative plant and algal species. (c) Predicted 3D structure of AKT2s and HAK1s in eight representative plant and algal species. Hv, Hordeum vulgare; Pa, Picea abies; Af, Azolla filiculoides; Sm, Selaginella moellendorffii; Pp, Physcomitrella patens; Mp, Marchantia polymorpha; Kf, Klebsormidium flaccidum; Vc, Volvox carteri.