物种	参考基因 ID	可能功能	对应论文 / DOI
拟南芥	At2g03530	质子偶联转运蛋白，运输广谱的杂环氮化合物的氧衍生物，包括尿囊素、尿酸和黄嘌呤，但不运输腺嘌呤。	UPS1 and UPS2 from Arabidopsis mediate high affinity transport of uracil and 5-fluorouracil.; 2004; DOI: 10.1074/jbc.m405433200; PMID: 15308648; https://pubmed.ncbi.nlm.nih.gov/15308648/
拟南芥	At2g03590	质子耦合转运蛋白，可转运多种杂环氮化合物的氧代衍生物，包括尿囊素、尿酸和黄嘌呤，但不包括腺嘌呤。	A novel superfamily of transporters for allantoin and other oxo derivatives of nitrogen heterocyclic compounds in Arabidopsis.; 2002; DOI: 10.1105/tpc.010458; PMID: 11971139; https://pubmed.ncbi.nlm.nih.gov/11971139/ | UPS1 and UPS2 from Arabidopsis mediate high affinity transport of uracil and 5-fluorouracil.; 2004; DOI: 10.1074/jbc.m405433200; PMID: 15308648; https://pubmed.ncbi.nlm.nih.gov/15308648/ | Heterologous expression of a plant uracil transporter in yeast: improvement of plasma membrane targeting in mutants of the Rsp5p ubiquitin protein ligase.; 2006; DOI: 10.1002/biot.200500034; PMID: 16897711; https://pubmed.ncbi.nlm.nih.gov/16897711/
拟南芥	At2g03520	质子偶联转运蛋白，可转运多种杂环氮化合物的氧代衍生物。	暂无已核实直接文献
拟南芥	At1g26440	质子偶联转运蛋白，运输广谱的杂环氮化合物的氧衍生物，包括尿囊素、尿酸和黄嘌呤，但不运输腺嘌呤。	Comparative studies on Ureide Permeases in Arabidopsis thaliana and analysis of two alternative splice variants of AtUPS5.; 2006; DOI: 10.1007/s00425-006-0315-z; PMID: 16738859; https://pubmed.ncbi.nlm.nih.gov/16738859/