53.下列何種抗癌藥的作用機制主要是抑制ribonucleotide reduc..-阿摩線上測驗
8F
|
9F Quinine 高二上 (2021/07/08)
The shaded area highlights the hydroxamic acid core of hydroxyurea. Hydroxamic acids avidly bind heavy metals and inactivate a variety of enzymes. Hydroxyurea inhibits the iron-containing enzyme ribonucleotide reductase, thereby killing cycling cells. Hydroxyurea also produces nitric oxide and stimulates the heme-iron– containing enzyme guanylate cyclase. Both activities have the potential to increase F-cell production. 來源: 查看完整內容 |
10F
|