UPF2（UPF2 regulator of nonsense mediated mRNA decay），癌症关联基因，基因ID：26019，该基因编码一种蛋白质，是参与mRNA核输出和mRNA监测的剪接后多蛋白复合物的一部分信使核糖核酸监测检测具有截短开放阅读框的输出信使核糖核酸，并启动无义介导的信使核糖核酸衰变（nmd）。当翻译从最后一个外显子-外显子连接处上游结束时，这会触发NMD降解含有过早终止密码子的mrna这种蛋白质位于核周区。它与翻译释放因子和酵母upf1p和upf3p的功能同源蛋白相互作用，发现了该基因的两个剪接变异体，两个变异体编码相同的蛋白质。[由RefSeq提供，2008年7月]This gene encodes a protein that is part of a post-splicing multiprotein complex involved in both mRNA nuclear export and mRNA surveillance. mRNA surveillance detects exported mRNAs with truncated open reading frames and initiates nonsense-mediated mRNA decay (NMD). When translation ends upstream from the last exon-exon junction， this triggers NMD to degrade mRNAs containing premature stop codons. This protein is located in the perinuclear area. It interacts with translation release factors and the proteins that are functional homologs of yeast Upf1p and Upf3p. Two splice variants have been found for this gene; both variants encode the s。