: It drives the formation of the heart, lungs, kidneys, and limbs. In the heart, it is essential for atrio-ventricular septation .
BMP4 is synthesized as a 408-residue preproprotein that undergoes specific proteolytic cleavage to become a mature 116-residue active peptide.
: It typically suppresses "default" neural differentiation to promote skin formation; however, in the adult brain, it helps maintain neural stem cell pools. Metabolic & Clinical Significance : It drives the formation of the heart,
BMP4 is essential from the earliest stages of life, where its loss often leads to embryonic lethality.
: It primarily signals through two routes: Known for its critical role in early development
is a versatile secreted signaling molecule belonging to the TGF-beta superfamily . Known for its critical role in early development and tissue homeostasis, it acts as a "master controller" for cellular fate. Biological Structure & Mechanisms
: It can also directly activate pathways like ERK, p38 MAPK, and JNK to regulate migration and survival. and Gremlin act as "ligand traps
: Factors like Noggin, Chordin, and Gremlin act as "ligand traps," preventing BMP4 from binding to its receptors. This balance is vital for correct organ patterning. Key Functions in Development