Topoisomerase I-recognition-like sites in mycoplasma genomes

Chernov, V.M.; Markina, O.S.; Chernova, O.A.

Microbios 86(346): 19-22

1996


ISSN/ISBN: 0026-2633
PMID: 8771772
Document Number: 467593
Repeated nucleotide sequences fitting the motif TGTTT-A-GAAAACTGA have been found in the Mycoplasma bovis genome. The tetradecamer sequences are also in spacer regions of rRNA operons of some species of Mollicutes. The sequences look like the DNA sites recognized by topoisomerase I from Tetrahymena pyriformis. imperfect copies of the sequences are known to be in genomes of viruses, lower and higher eukaryotes.

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