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Yes. Samples for SDS-PAGE are mixed with a loading buffer containing SDS (final concentration of SDS is usually 2%). Generally, the SDS will disrupt protein-protein interactions, even before boiling. Reducing agent (usually DTT or b-mercaptoethanol) is added to disrupt disulfide bonds. See diagram here. There are, however, exceptions. Some protein complexes/...


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Preamble Although there is a Wikipedia page with a general account of DNA footprinting, this perhaps does not put sufficient emphasis on the general strategy, making reference to the Maxam & Gilbert DNA sequencing method, with which contemporary students are not likely to be familiar. Elsewhere on SE Biology I have summarized the strategy of different ...


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