Bmp4 [ PROVEN | SECRETS ]: It can also directly activate pathways like ERK, p38 MAPK, and JNK to regulate migration and survival. BMP4 is essential from the earliest stages of life, where its loss often leads to embryonic lethality. : It can also directly activate pathways like : It drives the formation of the heart, lungs, kidneys, and limbs. In the heart, it is essential for atrio-ventricular septation . and limbs. In the heart : Binding to Type I (ALK3/ALK6) and Type II (BMPR2) receptors triggers the phosphorylation of R-Smads (Smad1/5/8) , which complex with Smad4 and move into the nucleus to regulate gene expression. : It can also directly activate pathways like : It primarily signals through two routes: : It initiates bone and cartilage development and is particularly critical for patterning teeth. Mutations in BMP4 are linked to tooth agenesis (missing teeth). |
||