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Oligodeoxynucleotide stability in subcellular extracts and culture media
Journal of Biochemical and Biophysical Methods
|September 1, 1986
Summary
Oligodeoxynucleotide stability varies by system. Degradation was minimal in cell lysate and medium but rapid in calf serum, impacting hybridization arrest experiments.
Area of Science:
- Molecular Biology
- Biochemistry
Background:
- Oligodeoxynucleotides are crucial for hybridization arrest assays targeting mRNA.
- Understanding oligodeoxynucleotide stability is essential for reliable experimental outcomes.
Purpose of the Study:
- To investigate the degradation rates of oligodeoxynucleotides in various biological systems.
- To evaluate the implications of degradation for hybridization arrest experiments.
Main Methods:
- Incubation of oligodeoxynucleotides in rabbit reticulocyte lysate, Dulbecco's modified essential medium with fetal calf serum, HeLa cell postmitochondrial cytoplasmic extract, and bovine calf serum.
- Assessment of oligodeoxynucleotide integrity over time using incubation conditions at 37 degrees C.
Main Results:
- Oligodeoxynucleotides showed no detectable degradation in rabbit reticulocyte lysate or medium with 5% fetal calf serum within 2 hours.
- Significant degradation occurred within 2 hours in HeLa cell extract.
- Rapid degradation was observed within 15 minutes in bovine calf serum.
Conclusions:
- Oligodeoxynucleotide stability is highly dependent on the experimental environment.
- Bovine calf serum and HeLa cell extracts pose risks for oligodeoxynucleotide degradation, potentially affecting hybridization arrest assay results.