Ribosome-binding and anti-microbial studies of the mycinamicins, 16-membered macrolide antibiotics from Micromonospora griseorubida.

Ribosome-binding and anti-microbial studies of the mycinamicins, 16-membered macrolide antibiotics from Micromonospora griseorubida.
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绿色小单孢菌素类大环内酯类抗生素的核糖体结合及抗微生物研究。

DOI:
10.1093/nar/gkab684
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发表时间:
2021-09-20
影响因子:
14.9
通讯作者:
Yonath A
Yonath A
中科院分区:
生物学2区
文献类型:
--
作者:
Breiner-Goldstein E;Eyal Z;Matzov D;Halfon Y;Cimicata G;Baum M;Rokney A;Ezernitchi AV;Lowell AN;Schmidt JJ;Rozenberg H;Zimmerman E;Bashan A;Valinsky L;Anzai Y;Sherman DH;Yonath A

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大环内酯类抗生素作为有效的临床抗生素已有70多年的历史。它们通过使核糖体中的新生蛋白质出口通道变窄来抑制细菌病原体中的蛋白质生物合成。大环内酯类天然产物由连接到一个或多个糖分子的大环内酯环组成。目前使用的大多数大环内酯是由14或15元大环内酯环组成的半合成红霉素衍生物。细菌病原体中迅速出现的耐药性是最紧迫的全球健康挑战之一,这使得许多抗生素无效,包括下一代大环内酯类。为了解决这一威胁,并推进开发新抗生素的长期计划,我们展示了16元大环内酯类药物如何克服临床分离的金黄色葡萄球菌菌株的红霉素耐药性。通过确定这些16元选择的大环内酯类抗生素的耐辐射异常球菌(D50S)的核糖体大亚基的复合物的结构,并进行抗微生物研究,我们确定了他们可能克服的耐药机制。这一新的信息为合理设计有效对抗耐药人类病原体的治疗方法提供了重要的见解。
Macrolides have been effective clinical antibiotics for over 70 years. They inhibit protein biosynthesis in bacterial pathogens by narrowing the nascent protein exit tunnel in the ribosome. The macrolide class of natural products consist of a macrolactone ring linked to one or more sugar molecules. Most of the macrolides used currently are semi-synthetic erythromycin derivatives, composed of a 14- or 15-membered macrolactone ring. Rapidly emerging resistance in bacterial pathogens is among the most urgent global health challenges, which render many antibiotics ineffective, including next-generation macrolides. To address this threat and advance a longer-term plan for developing new antibiotics, we demonstrate how 16-membered macrolides overcome erythromycin resistance in clinically isolated Staphylococcus aureus strains. By determining the structures of complexes of the large ribosomal subunit of Deinococcus radiodurans (D50S) with these 16-membered selected macrolides, and performing anti-microbial studies, we identified resistance mechanisms they may overcome. This new information provides important insights toward the rational design of therapeutics that are effective against drug resistant human pathogens.
DOI: 10.1002/cber.19510840306
发表时间: 1951-01-01
期刊: CHEMISCHE BERICHTE-RECUEIL
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DOI: 10.1016/s0378-1097(02)01123-0
发表时间: 2003-01-21
影响因子: 2.1
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DOI: 10.1107/s0907444994003112
发表时间: 1994-09-01
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作者:
BAILEY, S
通讯作者: BAILEY, S