NewsSpectroscopy
Thermo Fisher Scientific Introduces New Tools to Study Active Serine Hydrolases
17 Apr 2011bridget bridget
Laboratory Director
Product news
Thermo Fisher Scientific, the world leader in serving science, today announced the introduction of novel reagents for the study of active serine hydrolases. The Thermo Scientific ActivX Serine Hydrolase Probes contain a fluorphosphonate (FP) element that specifically binds to the active site of serine hydrolases. The probes enable enrichment of serine hydrolase enzymes and determination of enzymatic activity using fluorescent SDS-PAGE, Western blot or mass spectrometry (MS) workflows.
Three ActivX® Serine Hydrolase Probes are available. The ActivX TAMRA-FP Probes can be used to label and detect serine hydrolase activity in samples using fluorescent gel imaging, capillary electrophoresis or MS. The ActivX Azido-FP Probes can be used in combination with phosphine- or alkyne-derivatized tags for detection or enrichment. Lastly, the ActivX Desthiobiotin-FP Probes can be used for detection and enrichment of active-site-labeled proteins by Western blot and MS.
The ActivX Serine Hydrolase Probes provide sufficient reagent for 100 labeling reactions or 10 pull-down reactions. The probes store easily at -80°C for up to one year. For more information on the probes, please visit the company article page.
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ElectrophoresisElectrophoresis equipment is used to separate mixtures of protein, DNA or RNA, based on their electric charge, size and other physical characteristics, by passing them through a medium such as a polyacrylamide gel, an agarose gel or a capillary tube. Electrophoresis equipment includes horizontal and vertical gel electrophoresis chambers, isoelectric focusing systems, 2D electrophoresis and capillary electrophoresis instruments. Precast gels with a gradient can be used or gels can be hand cast. Samples are run alongside ladders or markers to identify the approximate size of a molecule. Separated proteins and nucleic acids in the gel can be stained or probed with fluorescent markers and then imaged and detected using gel documentation instruments, transilluminators, densitometers and scanners. Find the best electrophoresis equipment in our peer-reviewed product directory: compare products, check customer reviews and receive pricing direct from manufacturers.Mass SpectrometryMass spectrometry (MS) is a powerful analytical technique used to identify and quantify molecules based on the mass-to-charge ratio of gas-phase ions. It provides detailed information about the structure, composition, and properties of compounds and is widely used across fields such as environmental monitoring, materials science, drug discovery and development, food and beverage testing, and wider chemical research. Key MS techniques include tandem mass spectrometry (MS/MS), liquid chromatography–mass spectrometry (LS-MS) and inductively coupled plasma (ICP-MS). Choosing from these wide range of techniques and technologies can be a daunting task, so keep up to date with scientific applications, performance expectations, and customer reviews here all in one place. Visit our product directory to receive quotes direct from the manufacturer.
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Distinguish cell types with differential media or proliferate cells with certain characteristics using selective media. Enrich your media with supplements such as growth factors, sera and vitamins. Find the best cell and tissue culture products, kits and equipment in our peer-reviewed product directory: compare products, check customer reviews and receive pricing direct from manufacturers.Cell Lines Stem Cells and Primary CellsPrimary cell cultures, established cell lines and stem cells are vital for <i>in vitro</i> and <i>ex vivo</i> experimentation. High-quality cells, optimized for your applications, alongside optimized cell substrates, growth medium and supplements, are critical for experimental success. Explore a range of cells suitable for your applications, including isogenic cell lines, competent cells, induced pluripotent stem cell (iPSC)-derived cell lines, fungal/bacterial/mammalian cell lines, stem cells and cancer cell lines. 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