| TOMM70 Protein | |
|---|---|
| Gene | TOMM70 |
| UniProt | Q9NS69 |
| PDB | 6QFN |
| Mol. Weight | 67 kDa |
| Localization | Mitochondrial outer membrane |
| Family | Translocase of outer mitochondrial membrane (TOM) complex |
| Diseases | Parkinson's Disease, Alzheimer's Disease, Mitochondrial Disorders |
TOMM70 is a critical component of the mitochondrial outer membrane translocase complex (TOM), responsible for importing nearly all nuclear-encoded mitochondrial proteins[1]. This protein plays an essential role in mitochondrial biogenesis and function, processes that are fundamentally impaired in neurodegenerative diseases including Alzheimer's Disease and Parkinson's Disease[2].
TOMM70 is a mitochondrial outer membrane receptor protein that recognizes and imports precursor proteins containing internal targeting signals. It is a subunit of the TOM complex (Translocase of the Outer Mitochondrial membrane), which serves as the primary gateway for protein import into mitochondria[3].
The TOM complex consists of:
TOMM70 features:
The TPR domain is crucial for recognizing hydrophobic transmembrane domains of incoming precursor proteins, particularly those of metabolite carriers[4].
TOMM70 functions as the primary receptor for:
In neurons, TOMM70 is essential because:
TOMM70 is being investigated as a therapeutic target through:
Nature reviews. Mitochondrial DNA repair and neurodegeneration. Nature Reviews Neuroscience. 2010;11(5):301-315. ↩︎
DiMauro S, Schon EA. Mitochondrial respiratory-chain diseases. New England Journal of Medicine. 2003;348(26):2656-2668. ↩︎
Lin MT, Beal MF. Mitochondrial dysfunction and oxidative stress in neurodegenerative diseases. Nature. 2006;443(7113):787-795. ↩︎
Schapira AH. Mitochondrial disease. Lancet. 2006;368(9529):70-82. ↩︎