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Sequence comparison of the S. pombe Trk1 and Trk2 putative potassium transporters. Pairwise alignment of the Trk1 and Trk2 amino acid sequences (accession no. P47946 and Q10065, respectively) were performed by the Clustal W method (open gap penalty, 10; extended gap penalty, 0.2). Identical amino acids are boxed and highlighted. The residue number for each protein is indicated at the right. Asterisks denote putative transmembrane domains.
