Figure 2. Histone H3K4me3 is enriched in cap mesenchyme and nascent nephrons. The cap mesenchyme (nephron progenitors) marked by Six2 (blue) and nephron progenitors marked by Lhx1 (red) were co-stained with H3K4me3 (green) and analyzed at 20× (A) and 60× (B). RGB overlay and pseudocolor images demonstrate co-localization with H3K4me3. Arbitrary linear units of fluorescent intensity (a.l.u.f.i.).
