GDF2

GDF2 (Growth Differentiation Factor 2), also known as BMP9 (Bone Morphogenetic Protein 9), is a protein that in humans is encoded by the GDF2 gene. It is a member of the bone morphogenetic protein (BMP) family and the TGF-beta superfamily. The proteins of this superfamily are highly diverse in function and play crucial roles in a variety of biological processes, including cell growth, differentiation, morphogenesis, development and immune response.

Function

GDF2 is a secreted ligand of the TGF-beta (transforming growth factor-beta) superfamily of proteins. Ligands of this family bind various TGF-beta receptors leading to recruitment and activation of SMAD family transcription factors that regulate gene expression. GDF2 is involved in the regulation of endothelial cell function. It also plays a crucial role in maintaining vascular integrity.

Clinical significance

Mutations in the GDF2 gene have been associated with pulmonary arterial hypertension. GDF2 is also being studied for its potential role in the treatment of liver fibrosis and cancer.

Structure

The GDF2 protein is synthesized as a large precursor molecule, which is cleaved to release the mature protein. The mature GDF2 protein is a dimer, composed of two identical subunits that are linked by disulfide bonds.

Expression

GDF2 is expressed in a variety of tissues, including the liver, lung, and heart. Its expression is regulated by various factors, including hypoxia and inflammatory cytokines.

See also

• Bone morphogenetic protein
• TGF-beta superfamily
• SMAD family
• Pulmonary arterial hypertension
• Liver fibrosis
• Cancer

References

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