Characterization of the ATP binding site on Escherichia coli DNA gyrase. Affinity labeling of Lys-103 and Lys-110 of the B subunit by pyridoxal 5'-diphospho-5'-adenosine.

Abstract

We have labeled the adenosine triphosphate binding site of Escherichia coli DNA gyrase with the ATP affinity analog, [3H]pyridoxal 5'-diphospho-5'-adenosine (PLP-AMP). PLP-AMP strongly inhibits the ATP-ase and DNA supercoiling activities of DNA gyrase, with 50% inhibition occurring at 7.5 microM inhibitor. ATP and ADP compete with PLP-AMP for binding and… (More)

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@article{Tamura1990CharacterizationOT, title={Characterization of the ATP binding site on Escherichia coli DNA gyrase. Affinity labeling of Lys-103 and Lys-110 of the B subunit by pyridoxal 5'-diphospho-5'-adenosine.}, author={Jun’ichi Tamura and Martin Gellert}, journal={The Journal of biological chemistry}, year={1990}, volume={265 34}, pages={21342-9} }