Besides, the nuclear/cytoplasmic RNA separation assay showed that UBE2CP1, UBE2CP4, and UBE2CP5 were mainly located in nucleus of GC cell lines, while UBE2CP2 and UBE2CP3 were distributed in cytoplasm and nucleus of GC cell lines (Fig. 1E). This evidence concerns the gene UBE2CP5 and gastric cancer.