AHA9 (Arabidopsis H(+)-ATPase 9); hydrogen-exporting ATPase, phosphorylative mechanism. Identical to ATPase 9, plasma membrane-type (AHA9) [Arabidopsis Thaliana] (GB:Q42556;GB:Q9M8N3;GB:Q9SAJ1); similar to AHA6 (ARABIDOPSIS H(+)-ATPASE 6), ATPase [Arabidopsis thaliana] (TAIR:AT2G07560.1); similar to AHA8 (ARABIDOPSIS H(+)-ATPASE 8), ATPase [Arabidopsis thaliana] (TAIR:AT3G42640.1); similar to AHA2 (Arabidopsis H(+)-ATPase 2), ATPase [Arabidopsis thaliana] (TAIR:AT4G30190.1); similar to unnamed protein product [Vitis vinifera] (GB:CAO43209.1); similar to unnamed protein product [Vitis vinifera] (GB:CAO67709.1); similar to hypothetical protein