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Comparison of AtNHX1 with human and yeast homologues. Alignment of the deduced amino acid sequences of AtNHX1, HsNHE-6 and ScNHX1. Identical residues are in black boxes, and dashes indicate gaps in the sequence. ∗ above alignment denote putative amiloride binding site from human NHE1 (163DVFFLFLLPPI173).
