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Isolation of a polymorphic CA repeat sequence at the human progesterone receptor (PGR) locus
K Tsukamoto1, I Watanabe, T Shiba
1Department of Molecular Biology, Nippon Medical School, Kawasaki, Japan.
Journal of Human Genetics
|December 16, 1998
Summary
Researchers identified a variable (CA) repeat DNA sequence near the human progesterone receptor (PGR) gene. This genetic marker can aid in studying endocrine disorders like progesterone resistance and various cancers.
Area of Science:
- Genetics
- Endocrinology
- Molecular Biology
Background:
- The human progesterone receptor (PGR) plays a crucial role in reproductive health and is implicated in hormone-dependent cancers.
- Genetic variations in or near the PGR gene can influence receptor function and disease susceptibility.
- Identifying polymorphic markers is essential for genetic association studies.
Purpose of the Study:
- To isolate and characterize a polymorphic marker within the genomic region of the human progesterone receptor (PGR) gene.
- To evaluate the utility of this polymorphism as a genetic marker for diseases associated with the female endocrine system.
Main Methods:
- Genomic DNA isolation from human sources.
- PCR amplification of a specific region containing a dinucleotide repeat.
- Analysis of repeat length variation to identify polymorphism.
Main Results:
- A polymorphic dinucleotide (CA) repeat sequence was successfully isolated from a genomic clone of the human PGR gene.
- The identified polymorphism exhibits variability, making it suitable as a genetic marker.
Conclusions:
- The discovered (CA) repeat polymorphism in the human PGR gene region serves as a valuable genetic marker.
- This marker can facilitate genetic studies of endocrine disorders, including progesterone resistance, breast, uterine, and ovarian cancers.