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A, incidence of bystander CD59− mutants among AL cells clustered with CHO cells that were either labeled with 100 μCi [3H]dTTP or no labeling. Columns, mean of four experiments; bars, SD. B, mutant spectrum of bystander CD59− mutants among AL cells clustered with CHO cells that were either labeled with 100 μCi [3H]dTTP or no labeling.
