• Cycloheximide A, EvoPure packaged and labeled.

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SKU: C123

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Cycloheximide A, EvoPure® is a highly purified (≥99.0) form of cycloheximide A, the active compound in standard grade cycloheximide.

Cycloheximide, isolated from Streptomyces griseus, is a protein synthesis inhibitor in eukaryotic cells and is commonly used to prevent fungal growth. It is soluble in DMSO.

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    Mechanism of Action

    Cycloheximide binds to the ribosome and inhibits the eEF2-mediated translocation step in protein synthesis, thus blocking translational elongation.

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    Cycloheximide is used in molecular biology for ribosome profiling / translational profiling to understand the complexity of the initiation of translation. Cycloheximide can also be used to determine the half-life of proteins, and select for CHX-resistant strains of yeast/fungi.

    Cancer Applications

    Pretreatment with cycloheximide followed by estrogen stimulation prevented the estrogen-induced changes in glucose metabolism in perfused breast cancer T47D clone 11 cells. This suggested that the estrogen stimulation requires synthesis of mRNA and protein (Neeman and Degani, 1989). In studying the “immune escape” of cancer cells, in human colorectal cancer cell line COLO 205 is normally resistant to TNF-alpha - a death inducing ligand. However, co-incubation TNF-alpha with cycloheximide caused time-dependent cell death. In fact, authors found that Cycloheximide sensitizes cells to TNF-alpha-induced apoptosis (Pajak et al, 2005).

    Eukaryotic Cell Culture Applications

    Cycloheximide is widely used in biomedical research to inhibit protein synthesis in eukaryotic cells studied in vitro. It inhibits the synthesis of proteins and macromolecules,and affects apoptosis in eukaryotes.

    Plant Biology Applications

    Cycloheximide is a commonly used lab reagent used in in vitro applications to inhibit fungal growth by targeting protein synthesis. In yeast, concentrations of 200 uM have fungicidal effects (Schneider-Poetsch et al, 2009). The compound can be used as a plant growth regulator to stimulate ethylene production in leaves and fruit.





    White or cream-colored powder

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