The protein encoded by this gene belongs to the rab family. Rab4A protein is involved in the regulation of procathepsin L secretion, it was either inhibited by expression of a Rab4A dominant-negative mutant or increased by overexpression of the wild-type Rab4A in human melanoma cells.

Western

Western blot analysis of Rab4A in (1) SH-SY5Y lysates; (2) MCF-7 lysates using Rab4 antibody.

Immunofluorescence

Immunofluorescence analysis of Rab4 in Hela using Rab4A antibody.