(a) Immunostaining for RapGEF2 on kidney sections of
control mice demonstrates widespread expression in both tubules and podocytes.
Its podocyte expression is mainly cytoplasmic, where it co-localizes with the
podocyte cytoplasmic marker nestin. Bar = low power, 50 μm; high power,
10 μm. (b) In podocyte-specific RapGEF2 KO mice, glomerular
RapGEF2 expression is absent but tubular expression is preserved. Bar = low
power, 50 μm; high power, 10 μm.