ResourceSpectroscopy
Expression of Mutant Proteins as Reagents for LC-MRM Assay Development and Internal Standards for Quantification
20 Aug 2015LC-MRM quantification of mutant proteins is an important and unique contribution to cancer biology. Presented in this scientific poster is the use of expression systems to make standard proteins for liquid chromatography-multiple reaction monitoring mass spectrometry (LC-MRM). Peptide synthesis and mutant protein expression has been explored to assist in assay development. In addition, proteins with multiple mutations were expressed for use as LC-MRM internal standards and as a comparison for quantification with peptide and protein standards.
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LC-MSLC-MS (liquid chromatography-mass spectrometry) systems and equipment are used for separation and quantitative analysis of complex mixtures, combining liquid chromatography and mass spectrometry. Quantify proteins, contaminants, pesticides or screen for drug metabolites with a high level of sensitivity. LC-MS systems and equipment include reverse phase, normal phase and specialized columns integrated with various MS detectors such as time-of-flight (TOF), quadrupole, orbitrap or ion trap mass analyzers. LC-MS/MS instruments equipped with a qTOF or triple quadrupole analyzer give greater sensitivity and resolving power to your analysis. Find the best LC-MS equipment in our peer-reviewed product directory: compare products, check customer reviews and receive pricing direct from manufacturers.Cellular PathologyCellular Pathology deals with the microscopic analysis of tissue samples and cells. Sample preparation and processing includes fixation, staining, sectioning and slide mounting, using equipment such microtomes and cryostats. In choosing immunohistochemistry and immunocytochemistry kits, consider chromogens, staining method, antibodies, microscopes and imaging.Protein PurificationProtein purification is a vital step in drug discovery, therapeutics, biotech and life science research. The purification process typically involves subcellular or membrane protein extraction with cell lysis kits, separation of proteins from cell debris by filtration or spin columns, and the isolation of proteins of interest from other proteins and impurities with affinity purification (including fusion protein tags and antibody binding proteins A, G and L), immunoprecipitation or chromatographic methods, such as ion exchange, size exclusion and immobilized metal affinity chromatography. All purification methods come in multiple formats for your laboratory needs, including agarose or magnetic beads, resins, columns and filter plates. Find the best protein purification equipment in our peer-reviewed product directory: compare products, check customer reviews and receive pricing direct from manufacturers.Protein BiologyThe analysis of protein expression, identity and function is vital for many areas of life science research and drug discovery. Some of the most commonly used techniques in protein analysis include Western blotting, electrophoresis and mass spectrometry.Cancer ResearchAlthough cancer is often referred to as a single condition, it actually consists of more than 100 different diseases. Microscopy, mass spectrometry, high throughput sequencing and flow cytometry are some of the most common techniques employed in cancer research labs.MutationMutations are changes in the DNA sequence that can lead to diseases, including cancer and genetic disorders. Analyzing mutations is crucial in diagnostics, drug development, and personalized medicine. Explore mutation detection tools in our peer-reviewed product directory; compare products, check reviews, and get pricing directly from manufacturers.BiologicsBiologics are medical products derived from living organisms, including vaccines, gene therapies, and monoclonal antibodies. These treatments are key to modern healthcare, especially in oncology and autoimmune diseases. Explore biologics research tools in our peer-reviewed product directory; compare products, check reviews, and get pricing directly from manufacturers.Minimizing Reagent LossAssay DevelopmentThe process of proving an assay to be sensitive with respect to the target is known as assay development. The assay should be able to characterize novel compounds and measure the potency of these compounds against a validated biological target.