Fig. 5.
Fig. 5. Biologic activity of chCLL-1/IL-2 as determined by the ability to support proliferation of CTLL-2 cells. Serial dilutions of chCLL-1/IL-2, chCLL-1, or recombinant IL-2 standard were incubated with 2 × 104 CTLL-2 cells in triplicate for 20 hours at 37°C. The cells were pulsed with 0.5 μCi of 3H-thymidine for 6 hours, and the samples were harvested and counted.

Biologic activity of chCLL-1/IL-2 as determined by the ability to support proliferation of CTLL-2 cells. Serial dilutions of chCLL-1/IL-2, chCLL-1, or recombinant IL-2 standard were incubated with 2 × 104 CTLL-2 cells in triplicate for 20 hours at 37°C. The cells were pulsed with 0.5 μCi of 3H-thymidine for 6 hours, and the samples were harvested and counted.

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