To elucidate potential mechanisms how EPB41L5 modulates integrin adhesion complex maturation, we performed quantitative SILAC-based integrin adhesome proteomics. For MS analysis of the podocyte adhesome, EPB41L5 or Luciferase (as negative control) was transient expressed in SILAC labeled podocytes by nucleofection (Amaxa Nucleofector, Lonza, Switzerland). Podocytes were seeded on cell culture dishes for 24 hours. Isolation of integrin adhesion complexes from podocytes was performed prior LC-MSMS analysis.In a second set of experiments adhesion complexes of collagen IV and fibronectin coated dishes were purified and analysed by LC-MSMS.