abstract |
The present invention provides a DNA comprising the nucleotide sequence shown in SEQ ID NO: 1 or 3 encoding a Na + driven Cl − / HCO 3 − exchanger, a protein comprising the amino acid sequence shown in SEQ ID NO: 2 or 4, and a deletion, substitution , A homologous protein comprising an amino acid sequence having an addition or insertion amino acid and functioning as a Na + driven Cl − / HCO 3 − exchanger when expressed in a cell, and a cell in which the protein is exogenously expressed. |