How mitochondria copy over damaged DNA
Mitochondrial translesion DNA synthesis
This work looks at how a key mitochondrial enzyme uses metal ions to copy past UV-damaged DNA, which matters for cell energy and aging.
Quick facts
| Grant type | R01 grant |
|---|---|
| Study type | NIH-funded research |
| Funding institution | University of Texas Med Br Galveston NIH-funded |
| Lab location | 1 site (Galveston, United States) |
| Project ID | NIH-11379093 on NIH RePORTER |
What this research studies
If you or a loved one are worried about mitochondrial health, this project examines how the mitochondrial DNA-copying enzyme Pol γ handles UV-type damage in laboratory experiments. Researchers will use purified proteins and damaged DNA templates to measure whether Pol γ can bypass lesions in the presence of different metal ions (magnesium and manganese). They will apply biochemical assays and biophysical/structural approaches to see how metal ions change the enzyme's shape and its ability to sense damage across several bases. The goal is to reveal basic mechanisms that help maintain mitochondrial DNA integrity.
Who could benefit from this research
Good fit: People with inherited mitochondrial disorders or conditions linked to mitochondrial dysfunction are the most likely patient groups to benefit from advances based on this research.
Not a fit: Patients seeking an immediate treatment or clinical intervention are unlikely to receive direct benefit because this is basic laboratory research.
Why it matters
Potential benefit: If successful, this work could reveal mechanisms that protect mitochondrial DNA and point toward ways to reduce age- or damage-related loss of cellular energy.
How similar studies have performed: Biochemical and structural studies of DNA polymerases have previously clarified how enzymes copy DNA, but the finding that metal ions control lesion bypass by Pol γ is a novel and emerging result.
Where this research is happening
Galveston, United States
- University of Texas Med Br Galveston — Galveston, United States (Active)
Researchers
- Principal investigator: Yin, Yuhui — University of Texas Med Br Galveston
- Study coordinator: Yin, Yuhui
About this research
- This is an active NIH-funded research project — typically early-stage science, not a clinical trial accepting patient enrollment.
- Some NIH-funded labs run parallel clinical studies or seek volunteers for related work. To check, contact the principal investigator or institution listed above.
- For full project details, budget, and progress reports, visit the official NIH RePORTER page below.