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gyrase

Pronunciation: ji'ras

Definition: The prokaryotic topoisomerase II that uses ATP to generate negative supercoils of DNA.

[L. gyro, to turn in a circle, fr. gyrus, G. gyros, circle + -ase, enzyme suff.]

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© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review date: Sep 19, 2016.

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