Molecular formula :
nature : isoelectric focusing, as the first to be other proteins by separating different isoelectric point, and then -- as has been isoelectric point of proteins separated by SDS - polyacrylamide gel electrophoresis as to the second, isoelectric point of the same or similar eggs white matter in the light of molecular sizes separately. Two-dimensional electrophoresis enable greatly enhanced resolution, if combined isotope labeling techniques, will be higher resolution, more protein components of the middle -- or the same or similar molecular weight proteins separated.
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