Western blot analysis of Stat3 phosphorylation in untreated (A,D), mouse LIF (sc-4989) treated (B,E) and LIF and lambda protein phosphatase (sc-200312A) treated (C,F) 3T3-L1 whole cell lysates. Antibodies tested include p-Stat3 (B-7): sc-8059 (A,B,C) and Stat3 (F-2): sc-8019 (D,E,F)