Beta-Lactamase Activity Assay Kit offers a simple and sensitive assay that can detect and quantify the enzymatic activity of these hydrolases. The assay is based on the hydrolysis of Nitrocefin, a chromogenic cephalosporin, that results in the generation of a colored product (OD 490 nm), which...
货号PV3575 10 µg CNY5,196.00 查看价格 下单后预计有货时间 15-Jan-2025 数量 批量或定制请求 性能保障 说明书 技术支持 产品信息 应用 建议稀释比 已发表文章 Kinase Assay (KA) Assay-dependent - 产品规格 种属 Human Expression System E. coli ...
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open the β-lactam ring, moving the two fluorophores apart and disrupting the FRET. This is measured as a change in fluorescence of substrate molecules from green to blue and only requires the presence of 100 molecules of the β-lactamase reporter, making it an incredibly sensitive assay. The...
All these plant extracts were further checked for their inhibition of Extended Spectrum Beta-lactamase in the screening assay. Eight of the plant extracts showed potentiation of cephalosporins against the Extended Spectrum Beta-lactamase producing Klebsiella pneumoniae strain and were checked for their ...
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The β-Lactamase Inhibitor Screening Kit is a rapid, simple and sensitive assay that is suitable for high throughput screening of β-Lactamase inhibitors. βL activity is measured by hydrolyzing a chromogenic cephalosporin called nitrocefin, producing a colorimetric product (A490), proportional to the...
We developed a whole-cell biosensor that quantifies beta-lactamase inhibition in a cellular context. This assay accounts for factors such as membrane permeability and can be used to identify novel beta-lactamase inhibitors. 展开 关键词: IN-VITRO ACTIVITY PSEUDOMONAS-AERUGINOSA CARBAPENEMASE NXL104 ...
Cloning assay showed that CAE-1 confers resistance to ampicillin, piperacillin, cefazolin, cefuroxime, and ceftriaxone, and elevates the MIC of ampicillin-sulbactam two-fold in Escherichia coli DH5α, suggesting that CAE-1 functions as a broad-spectrum β-lactamase. Amino acid sequences analysis ...
For instance, the ability of a compound to inhibit beta-lactamase activity in a standard enzyme inhibition assay may be used (see, e g, Page, Biochem J, 295:295-304 (1993)). Beta-lactamases for use in such assays may be purified from bacterial sources or preferably, are produced by ...