The BMP/ALK-1/BMPR2 Luciferase Reporter A549 Stable Cell Line is a specialized cellular model for sensitive, quantitative measurement of BMP pathway activation. It is based on a SMAD1/5/8-responsive luciferase reporter system, in which multiple SMAD-binding response elements are positioned upstream of a minimal promoter driving firefly luciferase expression. This configuration allows precise detection of BMP-induced transcriptional activity.
 
To enhance pathway activation, the cells are engineered to overexpress human activin A receptor-like kinase 1 (ALK‑1, ACVRL1; NM_000020.2), a key type I receptor and bone morphogenetic protein receptor type 2 (BMPR2; NM_001204.6). This combination ensures robust and physiologically relevant BMP signaling through the ALK‑1/BMPR2 receptor complex.
 
These features make BMP/ALK-1/BMPR2 reporter cell lines powerful tools for:
Drug discovery and inhibitor screening
Ligand characterization
Pathway analysis
Therapeutic development targeting BMP-dependent vascular signaling