JunB promotes Cyp40, but not FKBP51 or FKBP52, protein expression in ALK+ ALCL. Western blot analysis (left) and quantification (right) of Cyp40 (A), FKBP51 (B), and FKBP52 (C) levels in lysates collected from Karpas 299 and SUP-M2 cells treated with pooled control (non-targeting) or JunB siRNA. Quantification represents the mean and standard deviation of five (Cyp40) or four (FKBP51 and FKBP52) independent experiments. p values were obtained using paired, one-tailed t-tests. N.S. indicates a p value >0.05.