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A: Mutational analyses of coding regions of FXYD3. The results of direct sequencing analyses of H2087 lung cancer cells and H2087 lymphoblastic cells are shown. The position of a heterozygous mutation, g55c (D19H), is indicated with an arrow (also checked and circulated). B: Parts of protein sequences of FXYD3 in different species are shown. Asparate at the 19th amino acid (D19), which is evolutionally conserved, is enclosed. The FXYD3 motif is underlined.
