AVP1 (vacuolar-type H+-pumping pyrophosphatase 1); ATPase. Identical to Pyrophosphate-energized vacuolar membrane proton pump 1 (AVP1) [Arabidopsis Thaliana] (GB:P31414;GB:O80390;GB:Q41919;GB:Q41920;GB:Q56WP6;GB:Q8RY20;GB:Q8VZE3); similar to AVP2 (ARABIDOPSIS VACUOLAR H+-PYROPHOSPHATASE 2) [Arabidopsis thaliana] (TAIR:AT1G78920.1); similar to AVP2 (ARABIDOPSIS VACUOLAR H+-PYROPHOSPHATASE 2) [Arabidopsis thaliana] (TAIR:AT1G78920.2); similar to PPase [Hevea brasiliensis] (GB:AAS66771.1); similar to inorganic pyrophosphatase [Nicotiana tabacum] (GB:CAA58701.1); similar to pyrophosphate-energized vacuolar membrane proton pump [Thellungiella sal