Proteins

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How can you purify proteins faster than with FPLC?

Proteins can be analyzed or purified up to 3x faster with pressure-resistant glass columns of KNAUER Bioline and specially reinforced agarose media more

News Proteins

  • How intestinal cells build nutrient-absorbing surface

    The "brush border" – a densely packed array of finger-like projections called microvilli – covers the surfaces of the cells that line our intestines. Vanderbilt University researchers have now discovered how intestinal cells build this specialized structure, which is critical for absorbing nutrients more

  • No compromises: Short, flexible, reusable AFM probe

    JILA researchers have engineered a short, flexible, reusable probe for the atomic force microscope (AFM) that enables state-of-the-art precision and stability in picoscale force measurements. Shorter, softer and more agile than standard and recently enhanced AFM probes, the JILA tips will benefit na more

  • Amino acid fingerprints revealed in new study

    Some three billion base pairs make up the human genome—the floor plan of life. In 2003, the Human Genome Project announced the successful decryption of this code, a tour de force that continues to supply a stream of insights relevant to human health and disease. Nevertheless, the primary actors in v more

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White papers Proteins

  • Enzymatic Protein Digest for Mass-spectrometric Analysis

    The main focus in proteomic studies is on the identification of proteins in given biological samples. Proteins isolated and separated from a given sample (e.g., whole cell lysates, blood or tissue, protein complexes) by immunoprecipitation or affinity chromatography or two-dimensional electrophoresis must be proteolytically cleaved in the course of sample preparation for identification and characterization. A reproducible cleavage pattern of digested proteins is a prerequisite for the unambiguous identification of these proteins by mass spectrometry (MS). more

  • Efficient Transfection of Primary Human Skeletal Myoblasts Using FuGENE® HD Transfection Reagent

    Transfection of cells is one of the main techniques used to influence gene expression. Most primary cells and human skeletal myoblasts (SkMC) in particular are very difficult to transfect, whereas for cell lines such as C2C12, many suitable transfection reagents and protocols are available. Few publications report successful transfection of human primary myoblasts using non-viral systems [1,2,3]. These methods include cationic lipids such as phosphono­lipids, electroporation, and a combination of liposome and adenoviral associated proteins. But transfection efficiency is low and often is a compromise between toxicity of the reagents and transfection efficiency. more

  • High sensitive detection of follistatin by Imperacer®: an initial study on the way to analytical gene-doping tests

    For the understanding of interactions in the muscle-growth directing myostatin-pathway and therefore also for the establishment of high sensitive detection strategies for gene-doping, detailed studies of protein concentration levels in biological matrices and appropriate highly sensitive analytic techniques for quantitative monitoring of these biomarkers are required. In this work, the development of a high sensitive assay for follistatin based on the Imperacer® technology is described. The quantification limit in human serum was found at 60 pg/ml in only 6 µl sample volume. With this initial assay we demonstrate the first application in a set of analytical tests for a high sensitive myostatin pathway related profiling. more

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