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Human glial cell line-derived neurotrophic factor (GDNF) maps to chromosome 5
N Bermingham1, R Hillermann, F Gilmour
1Department of Biochemistry and Molecular Genetics, St. Mary's Hospital Medical School, Imperial College, Norfolk Place, London, UK.
Human Genetics
|December 1, 1995
Summary
Glial cell line-derived neurotrophic factor (GDNF) supports neuron survival. This study mapped the GDNF gene to human chromosome 5, aiding research into neuronal function and related mutations.
Area of Science:
- Neuroscience
- Genetics
- Molecular Biology
Background:
- Neurotrophic factors are crucial for neuron survival.
- Glial cell line-derived neurotrophic factor (GDNF) is a potent neurotrophic factor supporting dopaminergic neuron survival.
- GDNF influences dopamine uptake in midbrain cultures.
Purpose of the Study:
- To map the gene encoding GDNF in the human genome.
- To determine the gene's location relative to potential mutation sites affecting neuronal function.
Main Methods:
- Gene mapping using a cell hybrid panel.
- Fluorescent in situ hybridization (FISH) for gene localization.
- cDNA library screening (rat and human) for gene isolation and sequencing.
Main Results:
- The GDNF gene was localized to the short arm of human chromosome 5, specifically at 5p13.1-p13.3.
- Partial protein sequencing and isolation of rat and human GDNF sequences were achieved.
Conclusions:
- The precise mapping of the GDNF gene provides a foundation for investigating its role in neuronal development and disease.
- Understanding GDNF's genomic location is vital for studying mutations impacting neuronal function.