FIGURE 1.

Topologies of glomeromycotan AMTs and their genetic relationship. (A) Transmembrane domain (TMD) topology and intron localization of the six glomeromycotan AMTs. Green boxes indicate TMD positions, yellow triangles mark intron positions. Both are highly conserved, while N and C termini differ in length and are less conserved. (B) Reciprocal BLAST (Altschul et al., 1997) analysis (Blosum62 matrix) revealed a high conservation at the sequence level between the six transporters. They share at least 56% AA identity and 71% AA similarity. Intra-species comparisons are marked in dark gray.