A method for analyzing or purifying samples. Molecules are separated by their relative weight, charge, or stereochemistry, which affect their speed of movement through a gel.

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Can't resolve protein with native PAGE

This is a native gel. Let's call the left 2 lanes protein A and the right 2 lanes protein B. B is the same as A except it has a FLAG tag. They are both homotetramers of about 65 kDa. After ...
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An unknown band appearing in my gel electrophoresis

I am having trouble understanding what is the source of band "2" in the following gel-electrophoresis: In this experiment, we took an E.coli transformant colony and ran its nucleic acids in the ...