Fig. 3.
Effects of cytokines on activation of a STAT-like DNA-binding factor in Mo7e cells. Nuclear extracts from Mo7e cells grown in the absence of cytokine (CTL), or in the presence of 40 ng/mL EPO, 400 ng/mL TPO, 40 ng/mL GM-CSF or 40 ng/mL IL-3, were incubated with [32P]-labeled IRF-1 GAS oligonucleotide. The STAT-like DNA-binding complex and unbound probe were separated on 5% native polyacrylamide gel. The autoradiograph shows the DBF, NS, and free probes (P).