Reference: Kim KH, et al. (1999) Cloning and characterization of the gene encoding Aspergillus nidulans DNA topoisomerase II. Gene 236(2):293-301

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Abstract


We have determined the complete nucleotide sequence of a 5544bp genomic DNA fragment from Aspergillus nidulans that encodes DNA topoisomerase II (topo II). It contains a single open reading frame of 4740bp that codes for 1579 amino acid residues with a molecular weight of 178kDa; when expressed in Escherichia coli and Saccharomyces cerevisiae the molecular weight was 180kDa. The gene (TOP2) is divided into three exons. Two introns, 54bp and 60bp in length, are located at nucleotide positions 187 and 3214 respectively. Comparison of the deduced amino acid sequence with other eukaryotic topo II sequences showed a higher degree of identity with other fungal enzymes than the human topo IIalpha. One of monoclonal antibodies raised against human topo II, 6H8, can cross-react with Aspergillus topo II.

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Journal Article | Research Support, Non-U.S. Gov't
Authors
Kim KH, Akashi T, Mizuguchi I, Kikuchi A
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