1.10.5.1 - 1.10.5.1 CHO-K1 cells transiently expressing the mutated form of hQR2 1.10.5.1 expressed in Chinese hamster ovary cells and Escherichia coli 1.10.5.1 expressed in Escherichia coli 1.10.5.1 expressed in Hep-G2 cells 1.10.5.1 expressed in Sf9 insect cells 1.10.5.1 expression in CHO cells 1.10.5.1 expression in Escherichia coli 1.10.5.1 expression in Escherichia coli strain BL21(DE3) 1.10.5.1 expression of His-tagged OR2 in Spodoptera frugiperda Sf9 cells 1.10.5.1 expression of recombinant QR2 in Spodoptera frugiperda Sf9 cells using the baculovirus transfection method 1.10.5.1 overexpression in Escherichia coli 1.10.5.1 the His-tagged enzyme is expressed in the Sf9 Spodoptera frugiperda ovarian cell line ATCC CRL-1711 1.10.5.1 the mouse NQO2 cDNA is subcloned into the pMT2 eukaryotic expression vector which, upon transfection in monkey kidney COS1 cells, produce a significant increase in NQO2 activity. Deletion of 54 amino acids from the N-terminus of the mouse NQO2 protein results in the loss of NQO2 expression and activity in transfected COS1 cells