TY - JOUR
T1 - Comparative Study of Three Methods for Non-radioactive in Vivo DNA Labeling in Escherichia coli Using Nucleoside Analogs
AU - Pérez-Bello, Dannelys
AU - Suárez, Viana Manrique
AU - Bolaños, Celso Pérez
AU - López, Judith Miranda
AU - Pérez, Gabriel Pérez
AU - López-Canovas, Lilia
AU - Higginson-Clarke, David
AU - Rodríguez-Tanty, Chryslaine
AU - Riverón, Ana María
PY - 2003
Y1 - 2003
N2 - 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.
AB - 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.
KW - 5-BrdUrd
KW - In vivo labeling methods
KW - Non-radioactive probe
KW - Pyrimidine nucleoside analogues
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U2 - 10.1081/PB-120025369
DO - 10.1081/PB-120025369
M3 - Article
C2 - 14606684
AN - SCOPUS:0242490733
SN - 1082-6068
VL - 33
SP - 253
EP - 268
JO - Preparative Biochemistry and Biotechnology
JF - Preparative Biochemistry and Biotechnology
IS - 4
ER -