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PCR-Based Cloning of DNA Topoisomerase Genes

  • Wai Mun Huang
Part of the Methods in Molecular Biology™ book series (MIMB, volume 95)

Abstract

Numerous type I and type II DNA topoisomerase genes have now been identified and sequenced from both the eukaryotic and prokaryotic sources. Amino acid sequence alignments of these genes firmly establish that all type II topoisomerase genes belong to one family regardless of source, whereas among the type I topoisomerase genes, there are two subtypes: one typified by the bacterial top A gene and the other by the eukaryotic TOP1 gene (1,2). The high degree of sequence conservation among these families of genes provides a straightforward approach to identifying new genes by PCR methodologies. These genes may be used as specific DNA probes for genomic organization studies, for topoisomerase-targeting drug resistance studies, or they may be overexpressed as recombinant proteins for structure-function and comparative analyses.

Keywords

Degenerate Primer Conserve Amino Acid Amino Acid Sequence Alignment Genomic Walking gyrA Gene 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Humana Press Inc. 2001

Authors and Affiliations

  • Wai Mun Huang

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