What distinguishes topoisomerase type I from topoisomerase type II (“gyrase”) in E. coli bacteria?

Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
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What distinguishes topoisomerase type I from topoisomerase type II (“gyrase”) in E. coli bacteria?
 
Both types of topoisomerases participate in the formation of nucleosomes.
Topoisomerase type I cleaves one strand of a DNA duplex to remove DNA supercoils, and topoisomerase type II cleaves both strands of the DNA duplex when introducing negative supercoils into the molecule.
Topoisomerase type I works to replicate DNA and topoisomerase type II works to transcribe RNA.
Topoisomerase type I works on double-stranded DNA, and topoisomerase type II ("gyrase") works on single-stranded DNA.
Topoisomerase type I adds negative DNA supercoils, and topoisomerase type II removes them.
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