| Protein Name | SMAD Family Member 9 |
| Gene | SMAD9 |
| UniProt ID | O15118 |
| PDB IDs | 3J88, 5C7N, 5C7O |
| Molecular Weight | 53 kDa |
| Subcellular Localization | Cytoplasm, nucleus |
| Protein Family | SMAD family |
SMAD Family Member 9 is a SMAD family member. The protein contains the characteristic domain structure including [domain descriptions]. The molecular weight is approximately 53 kDa, and the protein localizes to Cytoplasm, nucleus.
SMAD9 (also known as SMAD8) is a receptor-regulated SMAD (R-SMAD) that primarily mediates BMP signaling. It shares functional similarities with SMAD1 and SMAD5. SMAD9 is essential for vascular development, pulmonary hypertension, and bone formation. In the nervous system, SMAD9 is involved in neural crest development, neurogenesis, and oligodendrocyte differentiation. It plays roles in white matter development and may be relevant to demyelinating diseases.
SMAD9 mutations cause primary pulmonary hypertension (PPH1) and hereditary hemorrhagic telangiectasia. In the CNS, SMAD9 is important for vascular development and may be relevant to cerebrovascular health.
This protein is a potential therapeutic target for neurodegenerative diseases. Research is ongoing to develop small molecule inhibitors and biologics that modulate its activity.
This section provides background information on the gene/protein and its role in the nervous system.
This overview section needs to be expanded with relevant scientific information from peer-reviewed sources.