Endonuclease G 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.
| Endonuclease G | |
|---|---|
| Protein Name | Endonuclease G |
| Gene | ENDOG |
| UniProt ID | O95071 |
| PDB ID | 3ED0 |
| Molecular Weight | 33 kDa |
| Subcellular Localization | Mitochondrial intermembrane space |
| Protein Family | Endonuclease family |
This page provides comprehensive information about the subject's role in neurodegenerative diseases. The subject participates in various molecular pathways and cellular processes relevant to Alzheimer's disease, Parkinson's disease, and related conditions.
Endonuclease G is a mitochondrial nuclease that is synthesized as a precursor with an N-terminal targeting sequence. The mature protein consists of a catalytic domain with endonuclease activity. It shares structural homology with other mitochondrial nucleases.
Under normal conditions, ENDOG is involved in mitochondrial DNA (mtDNA) replication and repair. It processes mtDNA primers during replication and helps maintain mtDNA integrity. The enzyme can degrade single-stranded and double-stranded DNA.
During apoptosis, ENDOG is released from mitochondria into the cytosol and nucleus. Working together with AIF, ENDOG causes large-scale DNA fragmentation. Unlike caspase-dependent DNA fragmentation (which produces ~180 bp internucleosomal fragments), ENDOG/AIF-mediated cleavage produces larger DNA fragments (50-300 kb).
The study of Endonuclease G 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.