Immunoprecipitation and Western blotting were performed as previously described.32 The following antibodies were used for immunoprecipitation: FKBP51 (sc‐271547; Santa Cruz Biotechnology), StARD13 (HPA035535; Sigma), and Halo (G9281; Promega). The following primary antibodies were used for immunoblotting: FKBP51 (ab126715; Abcam, Cambridge, UK and A301‐430A; Bethyl Laboratories, Inc., Montgomery, TX, USA), StARD13 (HPA035535; Sigma), Halo (G9281; Promega), and β‐actin (Sigma). Horseradish peroxidase‐conjugated secondary antibodies (Amersham Biosciences, Amersham, UK) were used to detect immunoreactive proteins by enhanced chemiluminescence (Thermo Scientific, Waltham, MA, USA).
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