Expression data in HeLa S3 cells transfected with control-, UAP56- or URH49-siRNA

Nuclear export of mRNA is an essential process for eukaryotic gene expression. TREX complex couples the gene expression from transcription and splicing to mRNA export. Sub2, a core component of TREX complex in yeast is diversified to two closely related RNA helicases, UAP56 and URH49 in human.UAP56 and URH49 are required for bulk poly (A)+ RNA export but their target genes are quite different. In conclusion, UAP56 and URH49 have a different function in vivo despite the highly similarity. Cytoplasmic RNA was prepared in HeLa cells transfected with control-, UAP56- and URH49-siRNA and analyzed by gene expression array.