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  • Title: Cloning and sequencing of the Escherichia coli gyrA gene coding for the A subunit of DNA gyrase.
    Author: Swanberg SL, Wang JC.
    Journal: J Mol Biol; 1987 Oct 20; 197(4):729-36. PubMed ID: 2828631.
    Abstract:
    The gene gyrA of Escherichia coli, which encodes the A subunit of DNA gyrase (topoisomerase II), has been cloned and a region of approximately 3300 base-pairs sequenced. An open reading frame of 2625 nucleotides coding for a protein of 97,000 Mr is located. The peptide weight of the subunit predicted from this open reading frame is in close agreement with previously published estimates of that of the A subunit. There is a "TATAAT" promoter motif located 44 bases upstream from the first "ATG" of the open reading frame. The amino acid sequence derived from the nucleotide sequence is about 50% homologous with that derived from the Bacillus subtilis gyrA gene sequence, with several regions showing greater than 90% homology.
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