significant discrepancies were found between the values for glutathione levels determined by the tietze enzymatic assay and those measured by labeling with monobromobimane followed by hplc analysis when these methods were applied to proliferating and quiescent cells of the 66 murine mammary tumor line depleted of glutathione by buthionine sulfoximine or to nuclei prepared from these cells by permeabilization with nonident detergent .
C0007610
nuclei
C0007634
cells