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Cells and Model Organisms

5 Ways to Destroy Your Yeast Transformation

Transforming yeast with DNA is a very similar process to transforming E. coli, but with just enough differences to trip you up if you let your attention slip.  Whether you’re doing a yeast two-hybrid screen, or using yeast as a model system, here are a some mistakes to to avoid… 1. Forgetting to add single…

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How Good Is Your Sterile Technique?

Virtually every research scientist has a use for sterile technique in the lab, whether you study infectious microorganisms, do tissue culture, or use E. coli for cloning. Good sterile technique is a basic lab skill required to avoid contamination of your materials and experiments; and fortunately, the principles are simple to learn and easy to…

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Use Cell Banks to Save Time Growing Routine Cultures

If you regularly grow up the same bacterial culture, whether it’s the strain that expresses your favorite protein, the culture you make your competent cells from, or just your regular control strain, it can be a bit of a pain growing it up from scratch each time. Before you even get to grow your actual…

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Tips for Eukaryotic Cell Transfection

Transfection of eukaryotic cells is a routine but sometimes tricky procedure. There are several transfection reagents available on the market, but sometimes the old methods are the best. I find that the simplest, fastest and cheapest transfection method for eukaryotic cells is calcium phosphate mediated transfection (1). It’s main advantage is that, since Ca2+ is…

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