SelectScience
Join Free
Accelerating Science
NewsLife Sciences

Promega Trypsin/Lys-C Mix Enhances Proteolysis of Difficult-to-Digest Proteins

Promega Corp.
5 Mar 2013
Sarah Thomas
Associate Editor

Product news

Promega Corporation announces the launch of Trypsin/Lys-C Mix, Mass Spectrometry Grade. A unique combination of Trypsin Gold and rLys-C proteases, the new mix increases peptide generation with in-solution protein digestion and works with even difficult to digest proteins.

Enhanced proteolytic activity achieved through use of Trypsin/Lys-C Mix can result in a 20-40% increase in the number of peptides generated, enabling a higher number of proteins to be identified. Trypsin/Lys-C Mix is also tolerant to Trypsin-inhibiting contaminants, enabling researchers to generate mass spectrometry data from poor-quality sample material such as FFPE sections.

Many proteins are resistant to Trypsin due to tight conformation, and although protein denaturation enables proteolysis, Trypsin is inactive under these conditions. Promega’s Trypsin/Lys-C Mix overcomes this barrier as it remains active even under strong denaturing conditions, enabling digestion of even proteolytically resistant proteins.

Links

Promega Corp.Company website

Tags

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. ProteomicsProteomics is the systemic bioinformatics study of proteins and amino acids, including their structure, size, function and identification. Tools used in proteomics include chromatography, blotting and gels, protein arrays, mass spectrometry and ELISA and associated analysis software. Analyzers and proteomic systems should be sensitive, high resolution, fast and may be automated for high-throughput.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 ExpressionProtein expression is the utilization of cell machinery for the synthesis of proteins and has become a critical tool in biotherapeutic, genomic, and proteomic research. Produce recombinant proteins with expression vectors in combination with a host cell suitable for high-level protein expression. For production of toxic proteins, consider cell-free expression vectors. Create and monitor post-translational modifications with protein modification kits. Find the best protein expression products 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.Protein Kinase

Related articles