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Induction of tyrosine aminotransferase by pyridoxine inDrosophila hydei

✍ Scribed by Karla Belew; Tom Brady

Publisher
Springer
Year
1981
Tongue
English
Weight
600 KB
Volume
82
Category
Article
ISSN
0009-5915

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✦ Synopsis

Salivary glands incubated in various concentrations of pyridoxine (Vitamin B6) show increasing tyrosine aminotransferase (TAT) activity at concentrations up to 10(-5) M and then decreasing activity up to 10(-2) M but in all cases the activity is greater than that of the controls. This increase in activity is demonstrable for up to 6 h, the longest period tested, and is dependent on the synthesis of new mRNA. A similar increase in TAT activity is observed in salivary glands subjected to heat shock. Antibodies prepared against purified tyrosine aminotransferase precipitate a peptide of the same molecular weight (40 KD) as that induced by pyridoxine.

πŸ“œ SIMILAR VOLUMES

Mercury influences rat liver tyrosine am
Mercury influences rat liver tyrosine aminotransferase activity and induction by dexamethasone
✍ Jadranka Dundjerski; Jelena BrkljačiΔ‡; Ivana ElakoviΔ‡; Sanja ManitaΕ‘eviΔ‡; Gordan πŸ“‚ Article πŸ“… 2006 πŸ› John Wiley and Sons 🌐 English βš– 113 KB

The effects of mercury (Hg) on basal and dexamethasone-induced tyrosine aminotransferase (TAT) activity in rat liver were studied. Comparison of TAT activity after in vitro and in vivo mercury application revealed the influence of the metal only when applied in vivo, suggesting that the effects are