gyrA Protein

《英文msh詞典》gyrA Protein
[同義詞] gyrA Protein
[主題詞] DNA Gyrase
[中文釋義] gyrA蛋白
[英文釋義] 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.