KUP3 (K+ uptake permease 3); potassium ion transmembrane transporter. Identical to Potassium transporter 4 (POT4) [Arabidopsis Thaliana] (GB:Q9LD18;GB:O22400;GB:Q9SGA3); similar to KT2 (POTASSIUM TRANSPORTER 2) [Arabidopsis thaliana] (TAIR:AT2G40540.2); similar to TRH1 (TINY ROOT HAIR 1), potassium ion transmembrane transporter [Arabidopsis thaliana] (TAIR:AT4G23640.1); similar to KT2 (POTASSIUM TRANSPORTER 2), potassium ion transmembrane transporter [Arabidopsis thaliana] (TAIR:AT2G40540.1); similar to potassium transporter [Phragmites australis] (GB:BAE93236.1); similar to unnamed protein product [Vitis vinifera] (GB:CAO49121.1); similar t