the o2 k factor was determined for normal chinese hamster v79 cells , v79 cells made acutely thiol deficient ( no detectable gsh or npsh ) using the gamma-glutamyl-cysteine synthetase enzyme inhibitor d , l-buthionine-s , r-sulfoximine ( d , l-bso ) , or a human skin fibroblast cell line gm3877 which , because of the nature of its genetic defect , has chronically low levels of gsh ( 7 % of normal skin fibroblasts ) .
C0007634
cells
C0016030
fibroblasts