Figure 5 From: Receptor oligomerization and beyond: a case study in bone morphogenetic proteins Biological activity of bone morphogenic protein (BMP)2 variants. The dose-dependent induction of alkaline phosphatase (ALP) activity in serum starved C2C12 cells is shown for the indicated ligands BMP2 wild type (BMP2wt) (black squares), coreBMP2wt (red triangles) and the heterodimeric coreBMP2wt/L51P variant (blue asterisks). The background absorption at 405 nm of 0.09 ± 0.0075 was not subtracted to indicate the signal to noise ratio.Back to article page