Abstract
In the present work, a comparative study of 5-FdUrd, thy-, and metabolic in vivo labeling methods for plasmid and chromosomal DNA in E. coli DH5α cells was performed in order to achieve the best thymidine substitution method by 5-BrdUrd. According to the colorimetric immunoenzymatic results, we found that the minimal detectable labeled DNA (MDLD) was 312pg with the 5-FdUrd and thy methods for 5-BrdUrd labeled plasmid DNA. 5-BrdUrd replaced about 96% of the total thymidine by 5-FdUrd methods; for the thy- and metabolic labeling methods, the MDLD value was 1,25ng for denatured 5-BrdUrd chromosomal DNA. Pyrimidine nucleoside analogues were also evaluated as immunochemical markers for their in vivo introduction into DNA.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 253-268 |
| Number of pages | 16 |
| Journal | Preparative Biochemistry and Biotechnology |
| Volume | 33 |
| Issue number | 4 |
| DOIs | |
| State | Published - 2003 |
| Externally published | Yes |
Keywords
- 5-BrdUrd
- In vivo labeling methods
- Non-radioactive probe
- Pyrimidine nucleoside analogues
ASJC Scopus subject areas
- Biotechnology
- Biochemistry
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