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Usaj, Marko, Zattelman, Lilach, Regev, Ronit, Shneyer, BI Boris I, Wiesel-Motiuk, Naama, Henn, Arnon, (2018) ' Overexpression and purification of human myosins from transiently and stably transfected suspension adapted HEK293SF-3F6 cells. ' Anal. Biochem.
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Abstract:The myosin family of motor proteins is an attractive target of therapeutic small-molecule protein inhibitors and modulators. Milligrams of protein quantities are required to conduct proper biophysical and biochemical studies to understand myosin functions. Myosin protein expression and purification represent a critical starting point towards this goal. Established utilization of Dictyostelium discoideum, Drosophila melanogaster, insect and mouse cells for myosin expression and purification is limited, cost, labor and time inefficient particularly for (full-length) human myosins. Here we are presenting detailed protocols for production of several difficult-to-purify recombinant human myosins in efficient quantities up to 1?mg of protein per liter of cell culture. This is the first time that myosins have been purified in large scale from suspension adapted transiently and stably expressing human cells. The method is also useful for expressing other human proteins in quantities sufficient to perform extensive biochemical and biophysical characterization.
Status: aheadofprint Type: Journal article Source: PUBMED PubMed ID: 30075102