Files in this Data Supplement:

• Supplemental file 1 - Three supplemental figures and legends:
  Fig. S1: Characterization of the adenoviral vector for constitutively active PI3K (Adeno/Myr-p110-Myc).
  Fig. S2: Analysis of the immunospecificity of the pan-a antibody by peptide competition analysis.
  Fig. S3: V-ATPase-dependent acidification of intracellular compartments of renal epithelial cells in response to glucose deprivation or stimulation and overexpression of constitutively active PI3K: fluorescence intensity profiles.
  Zipped PDF file.