RagD is expressed in the DCT. (A–C) Double immunofluorescence staining of mouse kidney sections for RagD in green and (A) UMOD (red), (B) NCC (red), or (C) AQP2 (red). Bar, 50 µm. D, distal tubule; G, glomerulus; IC, intercalated cell; P, principal cell; T, TAL.