Structural and phylogenetic analyses of resistance to next-generation aminoglycosides conferred by AAC(2') enzymes.
Structural and phylogenetic analyses of resistance to next-generation aminoglycosides conferred by AAC(2') enzymes.
复制标题
AAC(2')酶对下一代氨基糖苷的抗性的结构和系统发育分析。
DOI:
10.1038/s41598-021-89446-3
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发表时间:
2021-06-02
影响因子:
4.6
通讯作者:
Berghuis AM
中科院分区:
文献类型:
--
作者:
Bassenden AV;Dumalo L;Park J;Blanchet J;Maiti K;Arya DP;Berghuis AM
Plazomicin is currently the only next-generation aminoglycoside approved for clinical use that has the potential of evading the effects of widespread enzymatic resistance factors. However, plazomicin is still susceptible to the action of the resistance enzyme AAC(2′)-Ia from Providencia stuartii. As the clinical use of plazomicin begins to increase, the spread of resistance factors will undoubtedly accelerate, rendering this aminoglycoside increasingly obsolete. Understanding resistance to plazomicin is an important step to ensure this aminoglycoside remains a viable treatment option for the foreseeable future. Here, we present three crystal structures of AAC(2′)-Ia from P. stuartii, two in complex with acetylated aminoglycosides tobramycin and netilmicin, and one in complex with a non-substrate aminoglycoside, amikacin. Together, with our previously reported AAC(2′)-Ia-acetylated plazomicin complex, these structures outline AAC(2′)-Ia’s specificity for a wide range of aminoglycosides. Additionally, our survey of AAC(2′)-I homologues highlights the conservation of residues predicted to be involved in aminoglycoside binding, and identifies the presence of plasmid-encoded enzymes in environmental strains that confer resistance to the latest next-generation aminoglycoside. These results forecast the likely spread of plazomicin resistance and highlight the urgency for advancements in next-generation aminoglycoside design.
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DOI:
10.1107/s0907444905036693
发表时间:
2006-01-01
影响因子:
2.2
作者:
Evans, P
通讯作者:
Evans, P
DOI:
10.1107/s0907444909052925
发表时间:
2010-02
期刊:
Acta crystallographica. Section D, Biological crystallography
影响因子:
--
作者:
Adams PD;Afonine PV;Bunkóczi G;Chen VB;Davis IW;Echols N;Headd JJ;Hung LW;Kapral GJ;Grosse-Kunstleve RW;McCoy AJ;Moriarty NW;Oeffner R;Read RJ;Richardson DC;Richardson JS;Terwilliger TC;Zwart PH
通讯作者:
Zwart PH
DOI:
10.1093/bioinformatics/btq662
发表时间:
2011-02-01
期刊:
Bioinformatics (Oxford, England)
影响因子:
--
作者:
Benkert P;Biasini M;Schwede T
通讯作者:
Schwede T
影响因子:
10.7
作者:
Katoh K;Standley DM
通讯作者:
Standley DM
DOI:
10.1007/s101560050001
发表时间:
1999-03-01
期刊:
Journal of infection and chemotherapy : official journal of the Japan Society of Chemotherapy
影响因子:
--
作者:
Kondo, S.;Hotta, Kunimoto
通讯作者:
Hotta, Kunimoto