NQO1 and cervical cancer: Also, the levels ofMDM2 and NQO1 proteins in the cell can affect the stabilityof the p53 protein and the activity of its degradation processes.However, human papillomavirus, as an exogenous factor, canbe an additional cause affecting the work of the repair system.Most of the studies on the association of SNPs of genes withHPV infection and cervical cancer are devoted to the analysisof individual nucleotide substitutions.