Although we observed no correlation between the differential CNV pattern and the upregulation of proteins in dormant cells, deletions specifically in the dormant model were observed for nine proteins (METAP2, ASS1, S100B, EEF2, UBE2N, WASF1, SLC25A3, GSTT3 and LTA4H) of the downregulated ones, suggesting that tumour dormancy may impact the expression of these genes through genomic alteration. The gene discussed is UBE2N; the disease is neoplasm.