Figure 8

Amino acid sequence alignments of terrestrial and freshwater pulmonate snail metallothioneins [MTs; CdMT, CuMT and Cd/CuMT]. Protein or nucleotide sequences were obtained from GenBank and are specified in the legend of Figure 9. Conserved cysteine (cys) positions shared by all isoform families are shaded in red. Conserved non-cys amino acid positions are shaded as follows: blue, shared by all three isoform families; yellow, shared by the CdMT and the CuMT families; pink, shared by the CdMT and Cd/CuMT families; green, shared by the Cd/CuMT and the CuMT families. Asterisks between two sequences indicate identity; Cys residues are marked in bold. For abbreviations of species names see legend of Figure 9.