Western blot analysis of extracts from CNTF-treated SK-N-MC cells and EGF-treated A431 cells, using Phospho-Stat3 (Tyr705) Antibody (upper) or Stat3 Antibody #9132 (lower).
Immunoprecipitation of extracts from CNTF-treated 35S-labeled SK-N-MC cells, using Phospho-Stat3 (Tyr705) Antibody (upper) or Stat3 Antibody #9132 (lower).
Chromatin immunoprecipitations were performed with cross-linked chromatin from 4 x 10 6 Hep G2 cells starved overnight and treated with IL-6 (100 ng/ml) for 30 minutes, and either 10 μl of Phospho-Stat3 (Tyr705) Antibody or 2 μl of Normal Rabbit IgG #2729 using SimpleChIP ® Enzymatic Chromatin IP Kit (Magnetic Beads) #9003. The enriched DNA was quantified by real-time PCR using human IRF-1 promoter primers, SimpleChIP ® Human c-Fos Promoter Primers #4663, and SimpleChIP ® Human α Satellite Repeat Primers #4486. The amount of immunoprecipitated DNA in each sample is represented as signal relative to the total amount of input chromatin, which is equivalent to one.