Related Experiment Videos
Isolation of a full-length cDNA encoding mouse aromatase P450
M Terashima1, K Toda, T Kawamoto
1Department of Medical Chemistry, Kochi Medical School, Japan.
Archives of Biochemistry and Biophysics
|March 1, 1991
Summary
Researchers isolated a full-length mouse aromatase P450 cDNA clone. This study details its sequence, expression, and conserved domains, crucial for understanding steroidogenesis.
Area of Science:
- Molecular Biology
- Biochemistry
- Genetics
Background:
- Aromatase P450 is a key enzyme in estrogen biosynthesis.
- Understanding its structure and function is vital for reproductive biology and endocrinology.
Purpose of the Study:
- To isolate and characterize the full-length cDNA clone for mouse aromatase P450.
- To analyze its sequence, expression pattern, and conserved domains.
Main Methods:
- Isolation of a full-length cDNA clone from a pregnant mouse ovarian cDNA library.
- Northern blot analysis of ovarian RNA to determine mRNA expression.
- Sequence comparison with homologous genes from other species.
Main Results:
- A 2394-bp cDNA clone encoding 503 amino acids was isolated.
- Northern blot revealed major (2.5 kb) and minor (2.1 kb) mRNA bands.
- High nucleotide and amino acid sequence identity was observed with rat, human, and chicken aromatase P450.
Conclusions:
- The isolated clone represents the mouse aromatase P450 gene.
- Conserved domains, including a hydrophobic membrane-spanning region and a heme-binding domain, were identified.
- Comparative analysis highlights evolutionary conservation of the aromatase P450 enzyme.