Abstract
We have examined the mRNA levels and methylation patterns of the liver-specific tyrosine aminotransferase (TAT) gene in inbred female rats aged 6, 24 and 36 months. Northern hybridization analysis of total RNA showed a 65% decrease in the steady state transcript level of TAT in the liver of 24- and 36-month old rats as compared to 6-month old animals. The TAT gene as studied by Southern hybridization analysis using the isoschizomers Hpa II and Msp I was found to be hypomethylated in the liver as compared to spleen and brain at six CpG sites within the gene. Methylation at these sites remained unchanged during aging.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 128-130 |
| Number of pages | 3 |
| Journal | FEBS Letters |
| Volume | 269 |
| Issue number | 1 |
| DOIs | |
| State | Published - Aug 20 1990 |
| Externally published | Yes |
Keywords
- Aging
- DNA methylation
- Tyrosine aminotransferase
- mRNA
ASJC Scopus subject areas
- Biophysics
- Structural Biology
- Biochemistry
- Molecular Biology
- Genetics
- Cell Biology