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IMP-13 金属β-内酰胺酶的纯化和生化特性分析。

Purification and biochemical characterization of IMP-13 metallo-beta-lactamase.

机构信息

Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Buenos Aires, Argentina.

出版信息

Antimicrob Agents Chemother. 2011 Jan;55(1):399-401. doi: 10.1128/AAC.00421-10. Epub 2010 Oct 25.

DOI:10.1128/AAC.00421-10
PMID:20974864
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC3019620/
Abstract

The IMP-13 metallo-β-lactamase was overproduced in Escherichia coli BL21(DE3) and purified by chromatography. Analysis of kinetic parameters revealed some notable differences with other IMP-type enzymes, noteworthily a higher catalytic efficiency toward ticarcillin and piperacillin and a marked preference for imipenem over meropenem.

摘要

IMP-13 金属β-内酰胺酶在大肠杆菌 BL21(DE3)中过表达,并通过色谱法进行纯化。动力学参数分析显示与其他 IMP 型酶存在一些显著差异,值得注意的是,对替卡西林和哌拉西林的催化效率更高,对亚胺培南的偏好明显高于美罗培南。

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Antimicrob Agents Chemother. 2010 Aug;54(8):3197-204. doi: 10.1128/AAC.01336-09. Epub 2010 May 24.
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Acquired carbapenemases in Gram-negative bacterial pathogens: detection and surveillance issues.革兰氏阴性细菌病原体中获得性碳青霉烯酶:检测和监测问题。
Clin Microbiol Infect. 2010 Feb;16(2):112-22. doi: 10.1111/j.1469-0691.2009.03116.x.
3
Full Resistance and decreased susceptibility to carbapenems in IMP-13-producing Pseudomonas aeruginosa isolates from an outbreak.在一次暴发中,产IMP-13的铜绿假单胞菌分离株对碳青霉烯类药物呈现完全耐药和敏感性降低。
Antimicrob Agents Chemother. 2010 Mar;54(3):1381-2. doi: 10.1128/AAC.00399-09. Epub 2010 Jan 4.
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First organisms with acquired metallo-beta-lactamases (IMP-13, IMP-22, and VIM-2) reported in Austria.奥地利首次报告带有获得性金属β-内酰胺酶(IMP-13、IMP-22和VIM-2)的生物体。
Antimicrob Agents Chemother. 2009 May;53(5):2221-2. doi: 10.1128/AAC.01573-08. Epub 2009 Feb 17.
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