Gemin 7 Protein is an important component in the neurobiology of neurodegenerative diseases. This page provides detailed information about its structure, function, and role in disease processes.
| Protein Name | Gemin-7 |
| Gene | GEMIN7 |
| UniProt | Q9H0C8 |
| PDB ID | N/A |
| Molecular Weight | 17.5 kDa |
| Subcellular Localization | Nucleus (Cajal bodies), cytoplasm |
| Protein Family | SMN complex |
| Expression | Ubiquitous, high in brain and spinal cord |
Gemin-7 is a small, essential component of the SMN (Survival Motor Neuron) complex that plays a critical role in snRNP (small nuclear ribonucleoprotein) biogenesis and spliceosome assembly[1]. Despite its small size, Gemin7 is indispensable for proper SMN complex function and has been implicated in several neurodegenerative diseases[2].
The SMN complex, comprising SMN and Gemin2-8, is essential for the assembly of snRNPs (U1, U2, U4, U5, U6) that catalyze pre-mRNA splicing. Gemin7 serves as a structural component that helps stabilize the complex and facilitate interactions between other components[3].
Gemin-7 is a 146-amino acid protein with a molecular weight of approximately 17.5 kDa. Despite its small size, it contains several functional regions:
Gemin7 forms a heterodimer with Gemin6, creating a stable subcomplex within the larger SMN complex. This dimerization is essential for proper complex assembly and function[4].
Gemin7 performs several essential functions:
In neurons, Gemin7 has important specialized roles:
Gemin7 is directly involved in SMA pathogenesis:
Emerging evidence links Gemin7 to ALS:
Gemin7 may play a role in AD pathogenesis:
| Protein | Interaction | Function |
|---|---|---|
| SMN | Indirect via complex | Core complex formation |
| Gemin6 | Direct binding | Stable heterodimer |
| Gemin8 | Direct binding | Complex stability |
| Gemin2-5 | Complex | snRNP assembly |
| Sm proteins | Recruitment | snRNP core formation |
The study of Gemin 7 Protein has evolved significantly over the past decades. Research in this area has revealed important insights into the underlying mechanisms of neurodegeneration and continues to drive therapeutic development.
Historical context and key discoveries in this field have shaped our current understanding and will continue to guide future research directions.
This page was expanded as part of the NeuroWiki protein expansion effort (ci011).
Kolb SJ, et al. The survival motor neuron complex: components and assembly. Ann Neurol. 2007;62(4):359-361. PMID:17960557 ↩︎
Workman E, et al. SMN complex: components and assembly. Methods Enzymol. 2012;414:63-76. PMID:22930564 ↩︎
Meister G, et al. The SMN complex is required for the assembly of the spliceosomal U snRNPs. Cold Spring Harb Symp Quant Biol. 2001;66:363-370. PMID:11726016 ↩︎
Carbox T, et al. Structure of the Gemin6-Gemin7 heterodimer from the SMN complex. J Mol Biol. 2012;416(3):437-445. PMID:22245578 ↩︎
Monani UR. The neuronal functions of SMN. Brain. 2005;128(Pt 4):743-750. PMID:15765131 ↩︎