Survivin does not inhibit STAT3 homodimerization or acetylation. A, lysates from HEK293T cells transfected with cDNAs encoding Flag- and MYC-STAT3, with or without MYC-survivin were immunoprecipitated with anti-Flag then immunoblotted with anti-MYC or anti-Flag. B, lysates from HEK293T cells transfected with cDNAs encoding Flag-STAT3, HA-CBP, and MYC-survivin were immunoprecipitated with anti-Flag then immunoblotted with a pan-acetylation (Ac) antibody.