EIR1 (ETHYLENE INSENSITIVE ROOT 1); auxin:hydrogen symporter/ transporter. Identical to Auxin efflux carrier component 2 (PIN2) [Arabidopsis Thaliana] (GB:Q9LU77;GB:O82810;GB:Q9SYT2); similar to PIN3 (PIN-FORMED 3), auxin:hydrogen symporter/ transporter [Arabidopsis thaliana] (TAIR:AT1G70940.1); similar to PIN1 (PIN-FORMED 1), transporter [Arabidopsis thaliana] (TAIR:AT1G73590.1); similar to PIN4 (PIN-FORMED 4), auxin:hydrogen symporter [Arabidopsis thaliana] (TAIR:AT2G01420.2); similar to hypothetical protein [Vitis vinifera] (GB:CAN70111.1); similar to auxin efflux carrier protein [Medicago truncatula] (GB:AAM55298.2); similar to unnamed p