| 单词 | gyrB Gene Product |
| 释义 | gyrB Gene Product《英文msh词典》gyrB Gene Product [入口词] gyrB Gene Product [主题词] DNA Gyrase [英文释义] A bacterial DNA topoisomerase II that catalyzes ATP-dependent breakage of both strands of DNA,passage of the unbroken strands through the breaks,and rejoining of the broken strands. Gyrase binds to DNA as a heterotetramer consisting two A and two B subunits. In the presence of ATP,gyrase is able to convert relaxed circular DNA duplex into a superhelix. In the absence of ATP,supercoiled DNA is relaxed by DNA gyrase. |
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