xanthine/uracil permease family protein. Identical to Nucleobase-ascorbate transporter 4 (NAT4) [Arabidopsis Thaliana] (GB:P93039;GB:Q93ZL2;GB:Q9LPM0); similar to permease, putative [Arabidopsis thaliana] (TAIR:AT5G62890.1); similar to permease, putative [Arabidopsis thaliana] (TAIR:AT5G62890.3); similar to permease, putative [Arabidopsis thaliana] (TAIR:AT5G62890.2); similar to unnamed protein product [Vitis vinifera] (GB:CAO63992.1); similar to hypothetical protein [Vitis vinifera] (GB:CAN81484.1); similar to root uracil permease 1 [Oryza sativa (japonica cultivar-group)] (GB:CAJ84113.1); contains InterPro domain Xanthine/uracil/vitamin C